CVE-2025-44108

Severity: medium (CVSS 4.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-05-19 · updated 2026-06-17
Weakness: CWE-79

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.

Affected products

flatpressblog/flatpress: before 1.4 — fixed in 1.4

How to fix

Upgrade to a fixed version: flatpressblog/flatpress 1.4. Check the vendor advisory for mitigations.

References

https://github.com/flatpressblog/flatpress/commit/24a6feacf1747ec19725b52c097715c8ab9c4559
https://github.com/flatpressblog/flatpress/releases/tag/1.3.1
https://github.com/flatpressblog/flatpress/releases/tag/1.4.rc2
https://harish0x.github.io/blog/CVE-2025-44108
https://harish0x.github.io/blog/CVE-2025-44108

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