Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
The Drupal distribution drupal/sector (Packagist) is affected in versions below 10.3.3 and from 10.4.0 up to but not including 10.4.2. A module specific to the distribution does not sufficiently sanitize media names, which can lead to cross-site scripting. An attacker needs a role that can create or edit media entities, and the source notes this requirement limits the risk. Upgrade to 10.3.3 or 10.4.2, which are the listed fixed versions.
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 |
|---|---|---|---|---|
| 6.5 | Medium | 3.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L | ADP (CISA-ADP) |
- CISA KEV Not listed.
- EPSS 0.0016, the 5th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 30 Oct 2026, 03:09 UTC Confirmed by the CVE List
- 30 Oct 2026, 04:17 UTC Confirmed by NVD
- 31 Oct 2026, 13:53 UTC First seen by agentprime
- 31 Oct 2026, 13:53 UTC Confirmed by OSV