# Cotonti: Cross-Site Request Forgery in the Personal File Storage (PFS) module Advisory record · `GHSA-hp3v-wp32-953h` - **Identifiers:** `GHSA-hp3v-wp32-953h` · `CVE-2026-55745` · `PKSA-cy3k-vcz8-1k97` - **State:** Confirmed - **Severity:** CVSS 5.3 Medium - **Critical:** No - **Weakness (CWE):** [CWE-352](https://cwe.mitre.org/data/definitions/352.html) - **Tags:** [Cross-site request forgery (CSRF)](https://agentprime.io/advisories/tag/csrf.md) - **Published:** 18 Jun 2026 - **Updated:** 10 Sept 2026 - **Reviewed by a person:** No Published by the GitHub Advisory Database at 18 Jun 2026, 12:40 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. ## Affected packages - `cotonti/cotonti` (Packagist): affected `<=1.0.0`; no fixed version yet ## 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. Written 31 Oct 2026. ## 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 - 5.3 Medium, CVSS 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`, from CNA (TuranSec) - **CISA KEV:** Not listed. - **EPSS:** 0.0010, the 1st percentile, on 11 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](https://osv.dev/vulnerability/GHSA-hp3v-wp32-953h) ## Sources - [GitHub Advisory Database: GHSA-hp3v-wp32-953h](https://github.com/advisories/GHSA-hp3v-wp32-953h) - [OSV: GHSA-hp3v-wp32-953h](https://osv.dev/vulnerability/GHSA-hp3v-wp32-953h) - - - Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code. ## Check whether this affects you A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet. - With the agentprime MCP server (), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: - In a browser: reads your lockfile in the browser, never uploading it. - Whether it touches your code, with file and line: the Claude Code plugin, - As JSON: , or `POST https://api.agentprime.io/v1/match` with your packages () --- The web page: . Everything for agents: .