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VulnerabilityPublished Updated

CVE-2025-6848: code-projects Simple Forum · Unrestricted Upload

Affects code-projects Simple ForumSource CVE Database V5

0

Public exploit available · CVSS 5.3 Medium.

Data as of 26 Oct 2026, 12:55 UTC

CVSS 4.0 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 31% 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 29 Jun 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: evidence found.

    CVSS exploit maturity: proof of concept public

  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), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
code-projects Simple ForumAffected
  • =1.0
Fixed in–

AI-suggested

  1. Immediate mitigation should include disabling file upload functionality in /forum1.php if not essential, or restricting upload types and sizes through server-side validation.
  2. Implement strict input validation and sanitization on the 'File' parameter to prevent unauthorized uploads.
  3. Employ web application firewalls (WAFs) with custom rules to detect and block suspicious upload attempts targeting /forum1.php.
  4. Restrict file execution permissions in upload directories to prevent execution of uploaded malicious files.
  5. Monitor server logs for unusual upload activity or access patterns to /forum1.php.
  6. If possible, isolate the forum application in a segmented network zone to limit lateral movement in case of compromise.
  7. Engage with the vendor or community to obtain or develop patches addressing this vulnerability.
  8. Regularly update and audit forum software and dependencies to prevent similar issues.
  9. Educate administrators on secure configuration and incident response procedures related to web application vulnerabilities.

Description

A vulnerability, which was classified as critical, has been found in code-projects Simple Forum 1.0. This issue affects some unknown processing of the file /forum1.php. The manipulation of the argument File leads to unrestricted upload. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

References

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