What is CVE-2020-25987?

CVE-2020-25987 is a high-severity vulnerability in Monocms, classified under Insertion of Sensitive Information into Log File. CVSS score: 7.5/10. Published 2020-10-06.

How severe is CVE-2020-25987?

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

Is CVE-2020-25987 known to be exploited?

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

Information disclosure in Monocms

CVE-2020-25987

MonoCMS Blog 1.0 stores hard-coded admin hashes in the log.xml file in the source files for MonoCMS Blog. Hash type is bcrypt and hashcat mode 3200 can be used to crack the hash.

Published 2020-10-06 · 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: 0.016 (75.3th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 75.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000

Affected products

Monocms — versions 1.0

Weakness classification (CWE)

CWE-532 — Insertion of Sensitive Information into Log File

Public proof-of-concept exploits

References

monocms.com/download (Product, Vendor Advisory)
packetstormsecurity.com/files/159430/MonoCMS-Blog-1.0-File-Deletion-CSRF-Hardco… (Exploit, VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2020-25987?: CVE-2020-25987 is a high-severity vulnerability in Monocms, classified under Insertion of Sensitive Information into Log File. CVSS score: 7.5/10. Published 2020-10-06.
How severe is CVE-2020-25987?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2020-25987 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.