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CVE-2025-6453VulnerabilityPublished

CVE-2025-6453: diyhi bbs · Path Traversal

Affects diyhi bbsSource CVE Database V5

0

Not known to be exploited · CVSS 5.3 Medium.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 4.0 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 38% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 Jun 2025

  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 2026-10-25.

What to do

Affected software

ProductAffectedFixed in
Mavendiyhi/bbspkg:maven/diyhi/bbsOther threatsAffected
  • =6.8
Fixed in–

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

AI-suggested

Implement strict input validation and sanitization on the 'dirName' parameter to ensure it does not contain directory traversal sequences such as '../' or encoded variants.

Apply web application firewall (WAF) rules to detect and block suspicious path traversal patterns targeting the diyhi bbs endpoints.

Restrict file system permissions for the application user to the minimum necessary, preventing access to sensitive directories outside the application scope.

Monitor logs for unusual access patterns or attempts to exploit path traversal, focusing on requests to the vulnerable API function.

Isolate the diyhi bbs application in a sandboxed environment or container to limit potential damage from exploitation.

Engage with the diyhi vendor or community to obtain or request an official patch or update addressing this vulnerability.

If feasible, disable or restrict the vulnerable API endpoint until a patch is available.

Regularly back up forum data and configuration files to enable recovery in case of compromise.

Description

A vulnerability classified as critical has been found in diyhi bbs 6.8. Affected is the function Add of the file /src/main/java/cms/web/action/template/ForumManageAction.java of the component API. The manipulation of the argument dirName leads to path traversal. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

References

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