Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Cotonti (Packagist package cotonti/cotonti) versions up to and including 1.0.0 are affected by a cross-site request forgery flaw in the Personal File Storage (PFS) module, where the folder update action does not validate the anti-CSRF token. An attacker needs to lure a logged-in user to a malicious web page, which can then make the victim's browser submit a forged request that changes the folder's title, description, and public or gallery settings, including making a private folder public. No fixed version is listed in the source.
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 |
|---|---|---|---|---|
| 5.3 | Medium | 4.0 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N | CNA (TuranSec) |
- CISA KEV Not listed.
- EPSS 0.0010, the 1st percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:00 UTC First seen by agentprime
- 31 Oct 2026, 14:00 UTC Confirmed by OSV