Mattermost versions 11.1.x <= 11.1.0, 11.0.x <= 11.0.5, 10.12.x <= 10.12.3, 10.11.x <= 10.11.7 fail to verify that post actions invoking /share-issue-publicly were created by the Jira plugin which allowed a malicious Mattermost user to exfi…
Exact source revision recorded 1 Nov 2026 01:13:23 UTC. It does not establish the source's current position. Latest evidence.
euvd · EUVD-2025-205062
PublishedMattermost versions 11.1.x <= 11.1.0, 11.0.x <= 11.0.5, 10.12.x <= 10.12.3, 10.11.x <= 10.11.7 fail to verify that post actions invoking /share-issue-publicly were created by the Jira plugin which allowed a malicious Mattermost user to exfiltrate Jira tickets when victim users interacted with affected posts
EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.
Original publisher date fields
datePublished: Dec 24, 2025, 8:02:55 AM
dateUpdated: Dec 24, 2025, 4:35:17 PM
1 related source bulletins · separate from aliases
WID-SEC-W-2025-2685: Mattermost: Schwachstelle ermöglicht Offenlegung von Informationen
CVE-2025-64641
- Source published
- Dec 24, 2025, 8:02:55 AM (timezone not stated)
- Source modified
- Dec 24, 2025, 4:35:17 PM (timezone not stated)
- Observed here
- 1 Nov 2026 01:13:23 UTC
- Source terms
- ENISA EUVD · source terms and attribution apply
Original source record · Cite this exact observation · Complete original publisher JSON
This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.
EUVD CVSS 3.1 · 4.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N