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CVE-2025-15458VulnerabilityPublished Updated

CVE-2025-15458: bg5sbk MiniCMS · Improper Authentication

Affects bg5sbk MiniCMSSource CVE Database V5

0

Not known to be exploited · CVSS 6.9 Medium.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 4.0 base score
6.9Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.5% chance of exploitation in 30 days – higher than 47% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 5 Jan 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

What to do

Affected software

ProductAffectedFixed in
bg5sbkMiniCMSAffected
  • =1.0
  • =1.1
  • =1.2
  • =1.3
  • =1.4
  • =1.5
  • =1.6
  • =1.7
  • =1.8
Fixed in–
GitHubbg5sbk/MiniCMSpkg:github/bg5sbk/MiniCMSOther threatsAffected
  • =1.0
  • =1.1
  • =1.2
  • =1.3
  • =1.4
  • =1.5
  • =1.6
  • =1.7
  • =1.8
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Given the lack of an official patch, organizations should implement immediate compensating controls. First, restrict access to the /mc-admin/ directory using IP whitelisting or VPN-only access to limit exposure to trusted users. Employ web application firewalls (WAFs) with custom rules to detect and block suspicious requests targeting /mc-admin/post-edit.php or unusual authentication bypass attempts. Regularly monitor web server logs for anomalous access patterns or unauthorized administrative activity. Consider isolating the MiniCMS server from critical internal networks to contain potential breaches. If feasible, upgrade to a newer, unaffected CMS platform or apply custom patches after thorough code review. Maintain regular backups of web content to enable rapid restoration in case of compromise. Finally, engage in active threat intelligence monitoring for emerging exploits targeting this vulnerability to adjust defenses accordingly.

Description

A vulnerability was determined in bg5sbk MiniCMS up to 1.8. This affects an unknown function of the file /mc-admin/post-edit.php of the component Article Handler. Executing a manipulation can lead to improper authentication. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

References

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