XSS in Flatpress
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (24.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 24.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/flatpressblog/flatpress/releases/tag/1.3.1 (Release Notes)
- github.com/flatpressblog/flatpress/releases/tag/1.4.rc2 (Release Notes)
- github.com/flatpressblog/flatpress/commit/24a6feacf1747ec19725b52c097715c8ab9c4… (Patch)
- harish0x.github.io/blog/CVE-2025-44108 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-44108?
- CVE-2025-44108 is a medium-severity vulnerability in Flatpress, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2025-05-19.
- How severe is CVE-2025-44108?
- Medium severity. CVSS v3 base score is 4.8 out of 10.
- Is CVE-2025-44108 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.