CVE-2026-34974
CVE-2026-34974 · phpMyFAQ: SVG Sanitizer Bypass via HTML Entity Encoding leads to Stored XSS and Privilege Escalation
This page contains facts from public vulnerability sources. Check the original advisory before updating.
phpMyFAQ is an open source FAQ web application. Prior to version 4.1.1, the regex-based SVG sanitizer in phpMyFAQ (SvgSanitizer.php) can be bypassed using HTML entity encoding in javascript: URLs within SVG <a href> attributes. Any user with edit_faq permission can upload a malicious SVG that executes arbitrary JavaScript when viewed, enabling privilege escalation from editor to full admin takeover. This issue has been patched in version 4.1.1.
CVSS 5.4 · Medium · EPSS 0.2% · Fix available
- Published
- Updated
Stack: php
Affected products and versions
phpmyfaq
- Versions
- < 4.1.1: Affected
No fix published
thorsten/phpmyfaq Packagist
- Versions
- 2.10.0-alpha
- 2.8.0
- 2.8.0-RC
- 2.8.0-RC2
- 2.8.0-RC3
- 2.8.0-RC4
- 2.8.0-alpha2
- 2.8.0-alpha3
- 2.8.0-beta
- 2.8.0-beta2
- 2.8.0-beta3
- 2.8.1
- 2.8.10
- 2.8.11
- 2.8.12
- 2.8.13
- 2.8.14
- 2.8.15
- 2.8.16
- 2.8.17
- 2.8.18
- 2.8.19
- 2.8.2
- 2.8.20
- 2.8.21
- 2.8.22
- 2.8.23
- 2.8.24
- 2.8.25
- 2.8.26
- 2.8.27
- 2.8.28
- 2.8.29
- 2.8.3
- 2.8.4
- 2.8.5
- 2.8.6
- 2.8.7
- 2.8.8
- 2.8.9
- 2.9.0
- 2.9.0-alpha
- 2.9.0-alpha2
- 2.9.0-alpha3
- 2.9.0-alpha4
- 2.9.0-beta
- 2.9.0-beta2
- 2.9.0-rc
- 2.9.0-rc2
- 2.9.0-rc3
- 2.9.0-rc4
- 2.9.1
- 2.9.10
- 2.9.11
- 2.9.12
- 2.9.13
- 2.9.2
- 2.9.3
- 2.9.4
- 2.9.5
- 2.9.6
- 2.9.7
- 2.9.8
- 2.9.9
- 3.0.0
- 3.0.0-RC
- 3.0.0-RC.2
- 3.0.0-alpha
- 3.0.0-alpha.2
- 3.0.0-alpha.3
- 3.0.0-alpha.4
- 3.0.0-beta
- 3.0.0-beta.2
- 3.0.0-beta.3
- 3.0.1
- 3.0.10
- 3.0.11
- 3.0.12
- 3.0.2
- 3.0.3
- 3.0.4
- 3.0.5
- 3.0.6
- 3.0.7
- 3.0.8
- 3.0.9
- 3.1.0
- 3.1.0-RC
- 3.1.0-alpha
- 3.1.0-alpha.2
- 3.1.0-alpha.3
- 3.1.0-beta
- 3.1.1
- 3.1.10
- 3.1.11
- 3.1.12
- 3.1.13
- 3.1.14
- 3.1.15
- 3.1.16
- 3.1.17
- 3.1.18
- 3.1.2
- 3.1.3
- 3.1.4
- 3.1.5
- 3.1.6
- 3.1.7
- 3.1.8
- 3.1.9
- 3.2.0
- 3.2.0-RC
- 3.2.0-RC.2
- 3.2.0-RC.4
- 3.2.0-alpha
- 3.2.0-beta
- 3.2.0-beta.2
- 3.2.1
- 3.2.10
- 3.2.2
- 3.2.3
- 3.2.4
- 3.2.5
- 3.2.6
- 3.2.7
- 3.2.8
- 3.2.9
- 4.0.0
- 4.0.0-RC
- 4.0.0-RC.2
- 4.0.0-RC.3
- 4.0.0-RC.4
- 4.0.0-RC.5
- 4.0.0-alpha
- 4.0.0-alpha.2
- 4.0.0-alpha.3
- 4.0.0-alpha.4
- 4.0.0-beta
- 4.0.0-beta.2
- 4.0.1
- 4.0.10
- 4.0.11
- 4.0.12
- 4.0.13
- 4.0.14
- 4.0.15
- 4.0.16
- 4.0.18
- 4.0.19
- 4.0.2
- 4.0.3
- 4.0.4
- 4.0.5
- 4.0.6
- 4.0.7
- 4.0.8
- 4.0.9
- 4.1.0
- 4.1.0-RC
- 4.1.0-RC.2
- 4.1.0-RC.4
- 4.1.0-RC.5
- 4.1.0-RC.6
- 4.1.0-RC.7
- 4.1.0-alpha
- 4.1.0-alpha.2
- 4.1.0-alpha.3
- 4.1.0-beta
- 4.1.0-beta.2
- Affected ranges
- ECOSYSTEM: < 4.1.1
Update to 4.1.1