CVE-2021-26925
MEDIUMCVSS 5.4/10EPSS 1.01%
Last modified
CVE-2021-26925 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. Roundcube before 1.4.11 allows XSS via crafted Cascading Style Sheets (CSS) token sequences during HTML email rendering.. EPSS estimates a 1.01% chance of exploitation in the next 30 days.
Description
Roundcube before 1.4.11 allows XSS via crafted Cascading Style Sheets (CSS) token sequences during HTML email rendering.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Roundcube | Webmail | < 1.4.11 |
| Fedoraproject | Fedora | 32 |
| Fedoraproject | Fedora | 33 |
References
- https://github.com/roundcube/roundcubemail/commit/9dc276d5f26042db02754fa1bac6fbd683c6d596Patch, Third Party Advisory
- https://roundcube.net/news/2021/02/08/security-update-1.4.11Release Notes, Third Party Advisory
- https://github.com/roundcube/roundcubemail/commit/9dc276d5f26042db02754fa1bac6fbd683c6d596Patch, Third Party Advisory
- https://roundcube.net/news/2021/02/08/security-update-1.4.11Release Notes, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-26925?
Roundcube before 1.4.11 allows XSS via crafted Cascading Style Sheets (CSS) token sequences during HTML email rendering.
How severe is CVE-2021-26925?
CVE-2021-26925 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 1.01% probability of exploitation in the next 30 days.
How do I fix CVE-2021-26925?
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-2021-26925?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST