What is CVE-2025-29421?

CVE-2025-29421 is a high-severity vulnerability in Perfree Perfreeblog, classified under Improper Access Control. CVSS score: 7.5/10. Published 2025-08-25.

How severe is CVE-2025-29421?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Perfree Perfreeblog

CVE-2025-29421

PerfreeBlog v4.0.11 has an arbitrary file read vulnerability in the getThemeFileContent function.

Published 2025-08-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (27.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 27.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Perfree Perfreeblog — versions 4.0.11

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

github.com/147536951/Qiany1/blob/main/Perfreeblog_2.pdf (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-29421?: CVE-2025-29421 is a high-severity vulnerability in Perfree Perfreeblog, classified under Improper Access Control. CVSS score: 7.5/10. Published 2025-08-25.
How severe is CVE-2025-29421?: High severity. CVSS v3 base score is 7.5 out of 10.