PrestaShop some attribute not escaped in Validate::isCleanHTML method
Description
Some event attributes are not detected by the isCleanHTML method
Impact
Some modules using the isCleanHTML method could be vulnerable to xss
Patches
8.1.3, 1.7.8.11
Workarounds
The best workaround is to use the HTMLPurifier library to sanitize html input coming from users. The library is already available as a dependency in the PrestaShop project. Beware though that in legacy object models, fields of HTML type will call isCleanHTML.
Reporters
Reported by Antonio Russo (@Antonio-R1 on GitHub) and Antonio Rocco Spataro (@antoniospataro on GitHub).
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | prestashop/prestashop | >= 8.0.0-beta.1, < 8.1.3, < 1.7.8.11 | 8.1.3, 1.7.8.11 |
| PrestaShop (core) | prestashop/prestashop | >= 8.0.0-beta.1, < 8.1.3, < 1.7.8.11 | 8.1.3, 1.7.8.11 |
References
- https://github.com/PrestaShop/PrestaShop/security/advisories/GHSA-xgpm-q3mq-46rq
- https://nvd.nist.gov/vuln/detail/CVE-2024-21627
- https://github.com/PrestaShop/PrestaShop/commit/0ed1af8de500538490f88e9e794e2e8113fb8df7
- https://github.com/PrestaShop/PrestaShop/commit/73cfb44666818eefd501b526a894fe884dd12129
- https://github.com/PrestaShop/PrestaShop/commit/ba06d18466df5b92cb841d504cc7210121104883
- https://github.com/PrestaShop/PrestaShop/commit/f799dcff564cd1b7ead932ffc3343b675107dbce
- https://github.com/PrestaShop/PrestaShop
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N- Weakness (CWE)
CWE-20, CWE-79- Platform
- Composer, PrestaShop
- Package
prestashop/prestashop- Disclosed
- 03.01.2024
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-xgpm-q3mq-46rq - CC BY 4.0
Vulnerability history: prestashop/prestashop
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 31
- First → latest
- 12.2021 05.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 5
- High 8
- Medium 17
- Low 1
Disclosures per year
- 2021: 1
- 2022: 10
- 2023: 10
- 2024: 5
- 2025: 1
- 2026: 4
-
PrestaShop some attribute not escaped in Validate::isCleanHTML method this entry
Know which vulnerabilities affect your application
With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.