Vulnerability · Published Mar 18, 2026 · Assigned by CERT-PL

CVE-2025-12518Stored XSS in beefree.io

Medium 5.3

In plain English

A medium-severity cross-site scripting in Befree SDK from Bee Content Design. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities).

Severity (CVSS 4.0)5.3Medium

Exploit odds (30 days)0.3%top 76.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

beefree.io SDK is vulnerable to Stored XSS in Social Media icon URL parameter in email builder functionality. Malicious attacker can inject arbitrary HTML and JS into template, which will be rendered/executed when visiting preview page. However due to beefree's Content Security Policy not all payloads will execute successfully. This issue has been fixed in version 3.47.0.

Affected products (as reported)

Vendor	Product	Versions
Bee Content Design	Befree SDK	0 – before 3.47.0

Weakness: CWE-79 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

References

https://cert.pl/en/posts/2026/03/CVE-2025-12518 third-party-advisory
https://beefree.io/ product