CVE Explorer
CVE-2026-22880
Mattermost Mobile Apps versions <=2.37 11.4 2.0.37 11.0.4 11.1.3 11.3.2 10.11.11.0 fail to properly validate the SSO authentication callback origin which allows an attacker controlling a malicious Mattermost server to steal user credentials for a legitimate Mattermost server via relaying the SSO code exchange flow through the mobile application. Mattermost Advisory ID: MMSA-2025-00564
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"Mattermost","vendor":"Mattermost","versions":[{"lessThanOrEqual":"2.0.37","status":"affected","version":"0","versionType":"semver"},{"lessThanOrEqual":"11.0.4","status":"affected","version":"0","versionType":"semver"},{"lessThanOrEqual":"11.1.3","status":"affected","version":"0","versionType":"semver"},{"lessThanOrEqual":"11.3.2","status":"affected","version":"0","versionType":"semver"},{"lessThanOrEqual":"10.11.11","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"2.38.0"},{"status":"unaffected","version":"11.5…
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:5b9ad7c188b28b348c4600c45f90ba0f708b40642c5473a0687409a1cf19ffb5 · sha256:1754257d8d29e254… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:5b9ad7c188b28b348c4600c45f90ba0f708b40642c5473a0687409a1cf19ffb5 · sha256:1754257d8d29e254… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-352","description":"CWE-352: Cross-Site Request Forgery (CSRF)","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:5b9ad7c188b28b348c4600c45f90ba0f708b40642c5473a0687409a1cf19ffb5 · sha256:1754257d8d29e254… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"name":"MMSA-2025-00564","tags":["vendor-advisory"],"url":"https://mattermost.com/security-updates"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:5b9ad7c188b28b348c4600c45f90ba0f708b40642c5473a0687409a1cf19ffb5 · sha256:1754257d8d29e254… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.