CVE-2023-53909 — WBCE CMS 1

WBCE CMS 1.6.1 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious JavaScript by uploading crafted SVG files through the media manager. Attackers can upload SVG files containing script tags to the /wbce/modules/elfinder/ef/

01What is this vulnerability?

WBCE CMS 1.6.1 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious JavaScript by uploading crafted SVG files through the media manager. Attackers can upload SVG files containing script tags to the /wbce/modules/elfinder/ef/php/connector.wbce.php endpoint and execute JavaScript when victims access the uploaded file.

02Affected products

Vendor	Product	Versions
wbce-cms	WBCE CMS	1.6.1

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2025-12-17T22:44:46.920Z
• Last modified: 2026-03-05T12:02:54.173Z

09References

• www.exploit-db.com — https://www.exploit-db.com/exploits/51484
• wbce-cms.org — https://wbce-cms.org/
• www.vulncheck.com — https://www.vulncheck.com/advisories/wbce-cms-svg-file-content-cross-site-script…