Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
PrestaShop versions before 1.7.8.10, from 8.0.0 before 8.0.5, and from 8.1.0 before 8.1.1 are affected by an XSS injection flaw in the Validate::isCleanHTML method. The source gives few details on the attack conditions or what an attacker can do after exploiting it. Upgrade to 1.7.8.10, 8.0.5, or 8.1.1, depending on your installed branch. No workaround is listed.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 8.3 | High | 3.1 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:H/A:H | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0051, the 44th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:25 UTC First seen by agentprime
- 31 Oct 2026, 14:25 UTC Confirmed by OSV