What is CVE-2024-25411?

CVE-2024-25411 is a medium-severity vulnerability in Flatpress, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2024-09-27.

How severe is CVE-2024-25411?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2024-25411 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Flatpress

CVE-2024-25411

A cross-site scripting (XSS) vulnerability in Flatpress v1.3 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the username parameter in setup.php.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2024-09-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.009 (56.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.009 · change: +0.001

Affected products

Flatpress

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

drive.google.com/file/d/1GBL-iY5ZRaxRqLVqpBe1w6dVgEfywAG7/view (Broken Link)
github.com/flatpressblog/flatpress/pull/261 (Issue Tracking, Vendor Advisory)
github.com/paragbagul111/CVE-2024-25411 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2024-25411?: CVE-2024-25411 is a medium-severity vulnerability in Flatpress, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2024-09-27.
How severe is CVE-2024-25411?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2024-25411 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.