CVE-2021-25981
In Talkyard, regular versions v0.2021.20 through v0.2021.33 and dev versions v0.2021.20 through v0.2021.34, are vulnerable to Insufficient Session Expiration.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.46%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In Talkyard, regular versions v0.2021.20 through v0.2021.33 and dev versions v0.2021.20 through v0.2021.34, are vulnerable to Insufficient Session Expiration. This may allow an attacker to reuse the admin’s still-valid session token even when logged-out, to gain admin privileges, given the attacker is able to obtain that token (via other, hypothetical attacks)
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.46% probability · 84th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-613
- Affected
- talkyard/talkyard
- Source
- vulnerabilitylab@mend.io
EPSS 2.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/debiki/talkyard/commit/b0310df019887f3464895529c773bc7d85ddcf34Patch, Third Party Advisory
- https://github.com/debiki/talkyard/commit/b0712915d8a22a20b09a129924e8a29c25ae5761Patch, Third Party Advisory
- https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25981Patch, Third Party Advisory, VDB Entry
- https://github.com/debiki/talkyard/commit/b0310df019887f3464895529c773bc7d85ddcf34Patch, Third Party Advisory
- https://github.com/debiki/talkyard/commit/b0712915d8a22a20b09a129924e8a29c25ae5761Patch, Third Party Advisory
- https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25981Patch, Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.