CVE Explorer
CVE-2026-22892
Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 fail to validate user permissions when creating Jira issues from Mattermost posts, which allows an authenticated attacker with access to the Jira plugin to read post content and attachments from channels they do not have access to via the /create-issue API endpoint by providing the post ID of an inaccessible post.. Mattermost Advisory ID: MMSA-2025-00550
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":"11.1.2","status":"affected","version":"11.1.0","versionType":"semver"},{"lessThanOrEqual":"10.11.9","status":"affected","version":"10.11.0","versionType":"semver"},{"lessThanOrEqual":"11.2.1","status":"affected","version":"11.2.0","versionType":"semver"},{"status":"unaffected","version":"11.3.0"},{"status":"unaffected","version":"11.1.3"},{"status":"unaffected","version":"10.11.10"},{"status":"unaffected","version":"11.2.2"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:210c9c8b7828b70edfc42bbd523fa23acee1c2c0846d69457dce3209ae46f0c2 · sha256:e5d84e2ced082fcf… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:210c9c8b7828b70edfc42bbd523fa23acee1c2c0846d69457dce3209ae46f0c2 · sha256:e5d84e2ced082fcf… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-863","description":"CWE-863: Incorrect Authorization","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:210c9c8b7828b70edfc42bbd523fa23acee1c2c0846d69457dce3209ae46f0c2 · sha256:e5d84e2ced082fcf… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"name":"MMSA-2025-00550","tags":["vendor-advisory"],"url":"https://mattermost.com/security-updates"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:210c9c8b7828b70edfc42bbd523fa23acee1c2c0846d69457dce3209ae46f0c2 · sha256:e5d84e2ced082fcf… · /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.