phpMyFAQ - Stored XSS via Entity Decoding Depth Limit Bypass in SVG Sanitizer
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| thorsten | phpmyfaq | unaffected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thorsten | Phpmyfaq |
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| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-wj3q-vw2v-3rj3 | phpMyFAQ: SVG Sanitizer Entity Decoding Depth Limit Bypass Leading to Stored XSS |
Github GHSA |
GHSA-whqh-9pq5-c7r3 | phpMyFAQ has a SVG Sanitizer Entity Decoding Depth Limit Bypass Leading to Stored XSS |
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.187% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Phpmyfaq
Phpmyfaq phpmyfaq |
|
| CPEs | cpe:2.3:a:phpmyfaq:phpmyfaq:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Phpmyfaq
Phpmyfaq phpmyfaq |
|
| Metrics |
cvssV4_0
|
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Thorsten
Thorsten phpmyfaq |
|
| Vendors & Products |
Thorsten
Thorsten phpmyfaq |
| Type | Values Removed | Values Added |
|---|---|---|
| Description | phpMyFAQ before 4.1.2 contains a stored cross-site scripting vulnerability in SvgSanitizer::decodeAllEntities() that limits recursive entity decoding to 5 iterations, allowing attackers to bypass sanitization. Authenticated users with FAQ_EDIT permission can upload malicious SVG files with deeply nested ampersand encoding around numeric HTML entities to reconstruct javascript: URLs, which execute arbitrary JavaScript when clicked by other users viewing the uploaded SVG. | |
| Title | phpMyFAQ - Stored XSS via Entity Decoding Depth Limit Bypass in SVG Sanitizer | |
| Weaknesses | CWE-79 | |
| References |
| |
| Metrics |
cvssV3_1
|