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CVE-2026-6735

CVE-2026-6735 · XSS within PHP-FPM status endpoint

This page contains facts from public vulnerability sources. Check the original advisory before updating.

In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, 8.5.* before 8.5.6, due to improper sanitation of user data, it allows an attacker to compose an URL, which will cause the target to execute arbitrary JavaScript code (XSS) on the target's machine when the target is viewing the PHP-FPM status page.

CVSS 7.3 · High · EPSS 0.2% · Fix available

Published
Updated

Stack: system · php

Affected products and versions

  • php

    Versions
    • ≥ 8.2.*, < 8.2.31: Affected (semver)
    • ≥ 8.3.*, < 8.3.31: Affected (semver)
    • ≥ 8.4.*, < 8.4.21: Affected (semver)
    • ≥ 8.5.*, < 8.5.6: Affected (semver)

    Update to 8.2.31; Update to 8.3.31; Update to 8.4.21; Update to 8.5.6

  • php8.2 Debian:12

    Versions
    • 8.2.10-1
    • 8.2.10-2
    • 8.2.12-1
    • 8.2.16-1
    • 8.2.16-2
    • 8.2.17-1
    • 8.2.18-1
    • 8.2.18-1~deb12u1
    • 8.2.20-1~deb12u1
    • 8.2.20-2
    • 8.2.20-3
    • 8.2.21-1
    • 8.2.23-1
    • 8.2.24-1
    • 8.2.24-1~deb12u1
    • 8.2.26-1~deb12u1
    • 8.2.26-4
    • 8.2.27-1
    • 8.2.28-1~deb12u1
    • 8.2.29-1~deb12u1
    • 8.2.30-1~deb12u1
    • 8.2.5-2
    • 8.2.7-1
    • 8.2.7-1.1
    • 8.2.7-1.2
    • 8.2.7-1~deb12u1
    Affected ranges
    • ECOSYSTEM: < 8.2.31-1~deb12u1

    Update to 8.2.31-1~deb12u1

  • php8.4 Debian:13

    Versions
    • 8.4.11-1
    • 8.4.16-1
    • 8.4.16-1~deb13u1
    • 8.4.20-1
    Affected ranges
    • ECOSYSTEM: < 8.4.21-1~deb13u1

    Update to 8.4.21-1~deb13u1

  • php8.4 Debian:14

    Versions
    • 8.4.11-1
    • 8.4.16-1
    • 8.4.16-1~deb13u1
    • 8.4.20-1
    • 8.4.21-1~deb13u1
    Affected ranges
    • ECOSYSTEM: < 8.4.21-1

    Update to 8.4.21-1

  • php5 Ubuntu:Pro:14.04:LTS

    Versions
    • 5.5.3+dfsg-1ubuntu2
    • 5.5.3+dfsg-1ubuntu3
    • 5.5.6+dfsg-1ubuntu1
    • 5.5.6+dfsg-1ubuntu2
    • 5.5.8+dfsg-2ubuntu1
    • 5.5.9+dfsg-1ubuntu1
    • 5.5.9+dfsg-1ubuntu2
    • 5.5.9+dfsg-1ubuntu3
    • 5.5.9+dfsg-1ubuntu4
    • 5.5.9+dfsg-1ubuntu4.1
    • 5.5.9+dfsg-1ubuntu4.2
    • 5.5.9+dfsg-1ubuntu4.3
    • 5.5.9+dfsg-1ubuntu4.4
    • 5.5.9+dfsg-1ubuntu4.5
    • 5.5.9+dfsg-1ubuntu4.6
    • 5.5.9+dfsg-1ubuntu4.7
    • 5.5.9+dfsg-1ubuntu4.9
    • 5.5.9+dfsg-1ubuntu4.11
    • 5.5.9+dfsg-1ubuntu4.12
    • 5.5.9+dfsg-1ubuntu4.13
    • 5.5.9+dfsg-1ubuntu4.14
    • 5.5.9+dfsg-1ubuntu4.16
    • 5.5.9+dfsg-1ubuntu4.17
    • 5.5.9+dfsg-1ubuntu4.19
    • 5.5.9+dfsg-1ubuntu4.20
    • 5.5.9+dfsg-1ubuntu4.21
    • 5.5.9+dfsg-1ubuntu4.22
    • 5.5.9+dfsg-1ubuntu4.23
    • 5.5.9+dfsg-1ubuntu4.24
    • 5.5.9+dfsg-1ubuntu4.25
    • 5.5.9+dfsg-1ubuntu4.26
    • 5.5.9+dfsg-1ubuntu4.27
    • 5.5.9+dfsg-1ubuntu4.29
    • 5.5.9+dfsg-1ubuntu4.29+esm1
    • 5.5.9+dfsg-1ubuntu4.29+esm2
    • 5.5.9+dfsg-1ubuntu4.29+esm3
    • 5.5.9+dfsg-1ubuntu4.29+esm4
    • 5.5.9+dfsg-1ubuntu4.29+esm5
    • 5.5.9+dfsg-1ubuntu4.29+esm6
    • 5.5.9+dfsg-1ubuntu4.29+esm8
    • 5.5.9+dfsg-1ubuntu4.29+esm10
    • 5.5.9+dfsg-1ubuntu4.29+esm11
    • 5.5.9+dfsg-1ubuntu4.29+esm12
    • 5.5.9+dfsg-1ubuntu4.29+esm13
    • 5.5.9+dfsg-1ubuntu4.29+esm14
    • 5.5.9+dfsg-1ubuntu4.29+esm15
    • 5.5.9+dfsg-1ubuntu4.29+esm16
    • 5.5.9+dfsg-1ubuntu4.29+esm17
    • 5.5.9+dfsg-1ubuntu4.29+esm18
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • php7.0 Ubuntu:Pro:16.04:LTS

    Versions
    • 7.0.1-5
    • 7.0.1-6
    • 7.0.2-1
    • 7.0.2-3
    • 7.0.2-4
    • 7.0.2-5
    • 7.0.3-2
    • 7.0.3-3
    • 7.0.3-9ubuntu1
    • 7.0.4-5ubuntu1
    • 7.0.4-5ubuntu2
    • 7.0.4-7ubuntu1
    • 7.0.4-7ubuntu2
    • 7.0.4-7ubuntu2.1
    • 7.0.8-0ubuntu0.16.04.1
    • 7.0.8-0ubuntu0.16.04.2
    • 7.0.8-0ubuntu0.16.04.3
    • 7.0.13-0ubuntu0.16.04.1
    • 7.0.15-0ubuntu0.16.04.1
    • 7.0.15-0ubuntu0.16.04.2
    • 7.0.15-0ubuntu0.16.04.4
    • 7.0.18-0ubuntu0.16.04.1
    • 7.0.22-0ubuntu0.16.04.1
    • 7.0.25-0ubuntu0.16.04.1
    • 7.0.28-0ubuntu0.16.04.1
    • 7.0.30-0ubuntu0.16.04.1
    • 7.0.32-0ubuntu0.16.04.1
    • 7.0.33-0ubuntu0.16.04.1
    • 7.0.33-0ubuntu0.16.04.2
    • 7.0.33-0ubuntu0.16.04.3
    • 7.0.33-0ubuntu0.16.04.4
    • 7.0.33-0ubuntu0.16.04.5
    • 7.0.33-0ubuntu0.16.04.6
    • 7.0.33-0ubuntu0.16.04.7
    • 7.0.33-0ubuntu0.16.04.9
    • 7.0.33-0ubuntu0.16.04.11
    • 7.0.33-0ubuntu0.16.04.12
    • 7.0.33-0ubuntu0.16.04.14
    • 7.0.33-0ubuntu0.16.04.15
    • 7.0.33-0ubuntu0.16.04.16
    • 7.0.33-0ubuntu0.16.04.16+esm1
    • 7.0.33-0ubuntu0.16.04.16+esm2
    • 7.0.33-0ubuntu0.16.04.16+esm3
    • 7.0.33-0ubuntu0.16.04.16+esm4
    • 7.0.33-0ubuntu0.16.04.16+esm5
    • 7.0.33-0ubuntu0.16.04.16+esm6
    • 7.0.33-0ubuntu0.16.04.16+esm7
    • 7.0.33-0ubuntu0.16.04.16+esm8
    • 7.0.33-0ubuntu0.16.04.16+esm9
    • 7.0.33-0ubuntu0.16.04.16+esm10
    • 7.0.33-0ubuntu0.16.04.16+esm11
    • 7.0.33-0ubuntu0.16.04.16+esm12
    • 7.0.33-0ubuntu0.16.04.16+esm13
    • 7.0.33-0ubuntu0.16.04.16+esm14
    • 7.0.33-0ubuntu0.16.04.16+esm15
    • 7.0.33-0ubuntu0.16.04.16+esm16
    • 7.0.33-0ubuntu0.16.04.16+esm17
    • 7.0.33-0ubuntu0.16.04.16+esm18
    • 7.0.33-0ubuntu0.16.04.16+esm19
    • 7.0.33-0ubuntu0.16.04.16+esm20
    • 7.0.33-0ubuntu0.16.04.16+esm21
    • 7.0.33-0ubuntu0.16.04.16+esm22
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • php7.2 Ubuntu:Pro:18.04:LTS

    Versions
    • 7.2.1-1ubuntu2
    • 7.2.2-1ubuntu1
    • 7.2.2-1ubuntu2
    • 7.2.3-1ubuntu1
    • 7.2.5-0ubuntu0.18.04.1
    • 7.2.7-0ubuntu0.18.04.1
    • 7.2.7-0ubuntu0.18.04.2
    • 7.2.10-0ubuntu0.18.04.1
    • 7.2.15-0ubuntu0.18.04.1
    • 7.2.15-0ubuntu0.18.04.2
    • 7.2.17-0ubuntu0.18.04.1
    • 7.2.19-0ubuntu0.18.04.1
    • 7.2.19-0ubuntu0.18.04.2
    • 7.2.24-0ubuntu0.18.04.1
    • 7.2.24-0ubuntu0.18.04.2
    • 7.2.24-0ubuntu0.18.04.3
    • 7.2.24-0ubuntu0.18.04.4
    • 7.2.24-0ubuntu0.18.04.6
    • 7.2.24-0ubuntu0.18.04.7
    • 7.2.24-0ubuntu0.18.04.8
    • 7.2.24-0ubuntu0.18.04.9
    • 7.2.24-0ubuntu0.18.04.10
    • 7.2.24-0ubuntu0.18.04.11
    • 7.2.24-0ubuntu0.18.04.12
    • 7.2.24-0ubuntu0.18.04.13
    • 7.2.24-0ubuntu0.18.04.15
    • 7.2.24-0ubuntu0.18.04.16
    • 7.2.24-0ubuntu0.18.04.17
    • 7.2.24-0ubuntu0.18.04.17+esm1
    • 7.2.24-0ubuntu0.18.04.17+esm2
    • 7.2.24-0ubuntu0.18.04.17+esm3
    • 7.2.24-0ubuntu0.18.04.17+esm4
    • 7.2.24-0ubuntu0.18.04.17+esm5
    • 7.2.24-0ubuntu0.18.04.17+esm6
    • 7.2.24-0ubuntu0.18.04.17+esm7
    • 7.2.24-0ubuntu0.18.04.17+esm8
    • 7.2.24-0ubuntu0.18.04.17+esm9
    • 7.2.24-0ubuntu0.18.04.17+esm10
    • 7.2.24-0ubuntu0.18.04.17+esm11
    • 7.2.24-0ubuntu0.18.04.17+esm12
    • 7.2.24-0ubuntu0.18.04.17+esm13
    • 7.2.24-0ubuntu0.18.04.17+esm14
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • php7.4 Ubuntu:Pro:20.04:LTS

    Versions
    • 7.4.3-4build1
    • 7.4.3-4build2
    • 7.4.3-4ubuntu1
    • 7.4.3-4ubuntu1.1
    • 7.4.3-4ubuntu2.2
    • 7.4.3-4ubuntu2.4
    • 7.4.3-4ubuntu2.5
    • 7.4.3-4ubuntu2.6
    • 7.4.3-4ubuntu2.7
    • 7.4.3-4ubuntu2.8
    • 7.4.3-4ubuntu2.9
    • 7.4.3-4ubuntu2.10
    • 7.4.3-4ubuntu2.11
    • 7.4.3-4ubuntu2.12
    • 7.4.3-4ubuntu2.13
    • 7.4.3-4ubuntu2.15
    • 7.4.3-4ubuntu2.16
    • 7.4.3-4ubuntu2.17
    • 7.4.3-4ubuntu2.18
    • 7.4.3-4ubuntu2.19
    • 7.4.3-4ubuntu2.20
    • 7.4.3-4ubuntu2.22
    • 7.4.3-4ubuntu2.23
    • 7.4.3-4ubuntu2.24
    • 7.4.3-4ubuntu2.26
    • 7.4.3-4ubuntu2.28
    • 7.4.3-4ubuntu2.29
    • 7.4.3-4ubuntu2.29+esm1
    • 7.4.3-4ubuntu2.29+esm2
    • 7.4.3-4ubuntu2.29+esm3
    • 7.4.3-4ubuntu2.29+esm4
    • 7.4.3-4ubuntu2.29+esm5
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • php8.1 Ubuntu:22.04:LTS

    Versions
    • 8.1.0~rc4-1ubuntu2
    • 8.1.0-1
    • 8.1.2-1ubuntu1
    • 8.1.2-1ubuntu2
    • 8.1.2-1ubuntu2.1
    • 8.1.2-1ubuntu2.2
    • 8.1.2-1ubuntu2.3
    • 8.1.2-1ubuntu2.4
    • 8.1.2-1ubuntu2.5
    • 8.1.2-1ubuntu2.6
    • 8.1.2-1ubuntu2.8
    • 8.1.2-1ubuntu2.9
    • 8.1.2-1ubuntu2.10
    • 8.1.2-1ubuntu2.11
    • 8.1.2-1ubuntu2.13
    • 8.1.2-1ubuntu2.14
    • 8.1.2-1ubuntu2.15
    • 8.1.2-1ubuntu2.17
    • 8.1.2-1ubuntu2.18
    • 8.1.2-1ubuntu2.19
    • 8.1.2-1ubuntu2.20
    • 8.1.2-1ubuntu2.21
    • 8.1.2-1ubuntu2.22
    • 8.1.2-1ubuntu2.23
    Affected ranges
    • ECOSYSTEM: < 8.1.2-1ubuntu2.24

    Update to 8.1.2-1ubuntu2.24

  • php8.3 Ubuntu:24.04:LTS

    Versions
    • 8.3.0-1
    • 8.3.0-1ubuntu1
    • 8.3.4-1
    • 8.3.4-1build1
    • 8.3.6-0maysync1
    • 8.3.6-0ubuntu0.24.04.1
    • 8.3.6-0ubuntu0.24.04.2
    • 8.3.6-0ubuntu0.24.04.3
    • 8.3.6-0ubuntu0.24.04.4
    • 8.3.6-0ubuntu0.24.04.5
    • 8.3.6-0ubuntu0.24.04.6
    • 8.3.6-0ubuntu0.24.04.7
    • 8.3.6-0ubuntu0.24.04.8
    Affected ranges
    • ECOSYSTEM: < 8.3.6-0ubuntu0.24.04.9

    Update to 8.3.6-0ubuntu0.24.04.9

  • php8.4 Ubuntu:25.10

    Versions
    • 8.4.5-1ubuntu1
    • 8.4.8-1ubuntu1
    • 8.4.11-1ubuntu1
    • 8.4.11-1ubuntu1.1
    Affected ranges
    • ECOSYSTEM: < 8.4.11-1ubuntu1.2

    Update to 8.4.11-1ubuntu1.2

  • php8.5 Ubuntu:26.04:LTS

    Versions
    • 8.5.2-0ubuntu1
    • 8.5.4-0ubuntu1
    Affected ranges
    • ECOSYSTEM: < 8.5.4-0ubuntu1.1

    Update to 8.5.4-0ubuntu1.1

Original sources

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