CVE-2025-53923: emlog XSS — Exploit

Description

Emlog is an open source website building system. A cross-site scripting (XSS) vulnerability in emlog up to and including pro-2.5.17 allows remote attackers to inject arbitrary web script or HTML via the keyword parameter. Due to lack of sanitization it is possible to inject HTML/JS code into keyword parameter. If one persuades an user into clicking into prepared link it is possible to execute any JS code in admin's browser. As of time of publication, no known patched versions exist.

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CVSS v3.1 Score

8.2

HIGH

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

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
emlog	emlog	< 2.5.17

References

Exploits

https://github.com/emlog/emlog/security/advisories/GHSA-vvx2-m94x-f54m https://github.com/emlog/emlog/security/advisories/GHSA-vvx2-m94x-f54m

Frequently Asked Questions

What is CVE-2025-53923? +

Emlog is an open source website building system. A cross-site scripting (XSS) vulnerability in emlog up to and including pro-2.5.17 allows remote attackers to inject arbitrary web script or HTML via the keyword parameter. Due to lack of sanitization it is possible to inject HTML/JS code into keyword parameter. If one persuades an user into clicking into prepared link it is possible to execute any JS code in admin's browser. As of time of publication, no known patched versions exist. It has a CVSS v3.1 base score of 8.2 (HIGH).

How severe is CVE-2025-53923? +

CVE-2025-53923 has a CVSS v3.1 score of 8.2 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-53923? +

CVE-2025-53923 affects products from emlog, specifically: emlog. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-53923? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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