CVE-2025-44108: flatpress XSS — Exploit & Fix

Description

A stored Cross-Site Scripting (XSS) vulnerability exists in the administration panel of Flatpress CMS before 1.4 via the gallery captions component. An attacker with admin privileges can inject a malicious JavaScript payload into the system, which is then stored persistently.

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CVSS v3.1 Score

4.8

MEDIUM

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

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
flatpress	flatpress	< 1.4

References

Advisories & Patches

https://github.com/flatpressblog/flatpress/commit/24a6feacf1747ec19725b52c097715c8ab9c4559

Exploits

https://harish0x.github.io/blog/CVE-2025-44108 https://harish0x.github.io/blog/CVE-2025-44108

Other References

https://github.com/flatpressblog/flatpress/releases/tag/1.3.1 https://github.com/flatpressblog/flatpress/releases/tag/1.4.rc2

Frequently Asked Questions

What is CVE-2025-44108? +

A stored Cross-Site Scripting (XSS) vulnerability exists in the administration panel of Flatpress CMS before 1.4 via the gallery captions component. An attacker with admin privileges can inject a malicious JavaScript payload into the system, which is then stored persistently. It has a CVSS v3.1 base score of 4.8 (MEDIUM).

How severe is CVE-2025-44108? +

CVE-2025-44108 has a CVSS v3.1 score of 4.8 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-44108? +

CVE-2025-44108 affects products from flatpress, specifically: flatpress. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-44108? +

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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CVE-2025-44108