Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Affected: typo3/cms-scheduler from 11.0.0 before 11.5.42, fixed in 11.5.42. A cross-site request forgery flaw in the Scheduler Module lets an attacker trigger pre-defined backend commands, which can lead to unauthorized data import or export, if a logged-in backend user opens a malicious link or visits a compromised site with certain settings misconfigured. Upgrade to 11.5.42.
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 |
|---|---|---|---|---|
| 8.0 | High | 3.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0027, the 19th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:27 UTC First seen by agentprime
- 31 Oct 2026, 14:27 UTC Confirmed by OSV