What is CVE-2021-25981?

CVE-2021-25981 is a critical-severity vulnerability in Debiki Talkyard, classified under Insufficient Session Expiration. CVSS score: 9.8/10. Published 2022-01-03.

How severe is CVE-2021-25981?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Debiki Talkyard

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. 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)

EPSS: 0.025 (82.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Debiki Talkyard — versions v0.2021.20, unspecified
Talkyard

Weakness classification (CWE)

CWE-613 — Insufficient Session Expiration

References

vulnerabilitylab@mend.io (Patch, Third Party Advisory, x_refsource_MISC)
vulnerabilitylab@mend.io (Patch, Third Party Advisory, x_refsource_MISC)
vulnerabilitylab@mend.io (Patch, VDB Entry, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-25981?: CVE-2021-25981 is a critical-severity vulnerability in Debiki Talkyard, classified under Insufficient Session Expiration. CVSS score: 9.8/10. Published 2022-01-03.
How severe is CVE-2021-25981?: Critical severity. CVSS v3 base score is 9.8 out of 10.