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TI-2026-36797 Aliases CVE-2026-49954GHSA-prqv-jwmw-qpp3

Discuz! X5.0 Local File Inclusion via enable_disable.php Plugin Directory

Priority HIGH 72CWE-98Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-98.

Summary

Discuz! X5.0 releases 20260320 through 20260610 contain a local file inclusion vulnerability that allows authenticated administrators to execute arbitrary code by importing a specially crafted plugin configuration containing path traversal sequences in the directory attribute. Attackers can trigger an exception during plugin installation to bypass sanitization routines, causing malicious paths to be stored unsanitized and subsequently passed to include(), which combined with file upload functionality escalates to arbitrary code execution in the context of the web server user.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00525 44th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Discuz!Discuz! X5.020260320 – 20260610—No fix listedCNA
  • Discuz! X5.0 VendorDiscuz! Affected 20260320 – 20260610 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-49954
  2. 2026-10-03 Alias added: GHSA-prqv-jwmw-qpp3
  3. 2026-10-25 EPSS moved to the below the 50th percentile

References

Exploit 1

Other 1

  • TI-2026-36795 Discuz! X5.0 Authentication Bypass via dbbak.php Encryption Oracle CVSS 4.0CRITICAL 9.3
  • TI-2026-36796 Discuz! X5.0 CAPTCHA Bypass via Predictable Character Set CVSS 4.0MEDIUM 6.9
  • TI-2024-20381 Reflected Cross-Site Scripting (XSS) vulnerability in Discuz! version X3.4 20220811… CVSS 3.1HIGH 7.1
  • TI-2022-22486 Cross site scripting (XSS) vulnerability in DiscuzX 3.4 allows attackers to execute… CVSS 3.1MEDIUM 6.1
  • TI-2018-03910 Discuz! DiscuzX X3.4 allows remote attackers to bypass intended access restrictions via… CVSS 3.0CRITICAL 9.8
  • TI-2018-03813 Discuz! DiscuzX X3.4 allows remote authenticated users to bypass intended… CVSS 3.0HIGH 8.8
See all 14 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences