What is CVE-2021-25980?

CVE-2021-25980 is a high-severity vulnerability in Debiki Talkyard, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 8.8/10. Published 2021-11-11.

How severe is CVE-2021-25980?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Debiki Talkyard

CVE-2021-25980

In Talkyard, versions v0.04.01 through v0.6.74-WIP-63220cb, v0.2020.22-WIP-b2e97fe0e through v0.2021.02-WIP-879ef3fe1 and tyse-v0.2021.02-879ef3fe1-regular through tyse-v0.2021.28-af66b6905-regular, are vulnerable to Host Header Injection. By luring a victim application-user to click on a link, an unauthenticated attacker can use the “forgot password” functionality to reset the victim’s password and successfully take over their account.

EPSS: 0.012 (65.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Debiki Talkyard — versions v0.04.01, v0.2020.22-WIP-b2e97fe0e, v0.2021
Talkyard

Weakness classification (CWE)

CWE-74 — Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection)

References

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

Frequently asked questions

What is CVE-2021-25980?: CVE-2021-25980 is a high-severity vulnerability in Debiki Talkyard, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 8.8/10. Published 2021-11-11.
How severe is CVE-2021-25980?: High severity. CVSS v3 base score is 8.8 out of 10.