XSS in Backdropcms Mail Disguise
CVE-2025-27823
An issue was discovered in the Mail Disguise module before 1.x-1.0.5 for Backdrop CMS. It enables a website to obfuscate email addresses, and should prevent spambots from collecting them. The module doesn't sufficiently validate the data attribute value on links, potentially leading to a Cross Site Scripting (XSS) vulnerability. This is mitigated by the fact an attacker must be able to insert link (<a>) HTML elements containing data attributes into the page.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.002 (12.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.
Affected products
- Backdropcms Mail Disguise — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-27823?
- CVE-2025-27823 is a medium-severity vulnerability in Backdropcms Mail Disguise, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2025-03-07.
- How severe is CVE-2025-27823?
- Medium severity. CVSS v3 base score is 6.4 out of 10.