CVE-2021-25965

Name: CVE-2021-25965
Creator: NVD / NIST
Published: 2021-11-16T10:15:06.947+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.51%

Last modified Jun 17, 2026

CVE-2021-25965 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. In Calibre-web, versions 0.6.0 to 0.6.13 are vulnerable to Cross-Site Request Forgery (CSRF). By luring an authenticated user to click on a link, an attacker can create a new user role with admin privileges and attacker-controlled credentials, allowing them to take over the application.. EPSS estimates a 0.51% chance of exploitation in the next 30 days.

Description

In Calibre-web, versions 0.6.0 to 0.6.13 are vulnerable to Cross-Site Request Forgery (CSRF). By luring an authenticated user to click on a link, an attacker can create a new user role with admin privileges and attacker-controlled credentials, allowing them to take over the application.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

0.51%

39.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Janeczku	Calibre-Web	>= 0.6.0, <= 0.6.13

References

https://github.com/janeczku/calibre-web/commit/50919d47212066c75f03ee7a5332ecf2d584b98ePatch, Third Party Advisory
https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25965Third Party Advisory
https://github.com/janeczku/calibre-web/commit/50919d47212066c75f03ee7a5332ecf2d584b98ePatch, Third Party Advisory
https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25965Third Party Advisory

Timeline

Published: Nov 16, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-25965?

How severe is CVE-2021-25965?

CVE-2021-25965 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.51% probability of exploitation in the next 30 days.

How do I fix CVE-2021-25965?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-25965?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST