Read the docs
TI-2021-22514 Aliases CVE-2021-47900GHSA-xq2p-83g5-rqxp

Gila CMS < 2.0.0 - Remote Code Execution

Priority HIGH 81CWE-98Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

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

Summary

Gila CMS versions prior to 2.0.0 contain a remote code execution vulnerability that allows unauthenticated attackers to execute arbitrary system commands through manipulated HTTP headers. Attackers can inject PHP code in the User-Agent header with shell_exec() to run system commands by sending crafted requests to the admin endpoint.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00715 53rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Gila CMS (Gila CMS): 2.0.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
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
Gila CMSGila CMSbefore 2.0.02.0.0Patch availableCNA
  • Gila CMS VendorGila CMS Affected before 2.0.0 Fixed in 2.0.0 Patch available CNA

Remediation

  • Fix · CNA Gila CMS (Gila CMS) Fixed in 2.0.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-47900
  2. 2026-10-03 Alias added: GHSA-xq2p-83g5-rqxp

References

Exploit 1

Other 2

  • TI-2020-13921 Cross Site Request Forgery vulnerability in Gila GilaCMS v.1.11.4 allows a remote… CVSS 3.1HIGH 8.8
  • TI-2020-04486 Gila CMS 1.11.8 allows Unrestricted Upload of a File with a Dangerous Type via .phar or… CVSS 3.1CRITICAL 9.1
  • TI-2020-13872 Cross Site Scripting (XSS) vulnerability in adm_user parameter in Gila CMS version… CVSS 3.1MEDIUM 6.1
  • TI-2024-07096 Gila CMS HTTP POST Request page cross site scripting CVSS 4.0MEDIUM 5.3
  • TI-2020-04487 Gila CMS 1.11.8 allows /admin/sql?query= SQL Injection. CVSS 3.1HIGH 7.2
  • TI-2020-04485 Gila CMS 1.11.8 allows /cm/delete?t=../ Directory Traversal. CVSS 3.1MEDIUM 6.8
See all 25 →

Sources

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