TI-2021-15891 Aliases CVE-2021-38243 GHSA-22vx-3c5q-pcwr

xunruicms up to v4.5.1 was discovered to contain a remote code execution (RCE)…

MEDIUM 52CWE-94Published 2023-09-26 · Updated 2025-06-18

Key facts

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

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-94.

Summary

xunruicms up to v4.5.1 was discovered to contain a remote code execution (RCE) vulnerability in /index.php. This vulnerability allows attackers to execute arbitrary code via a crafted GET request.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.01578 75th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
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

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:xunruicms:xunruicms::::::::	up to 4.5.1	Vulnerable	dayrui

cpe:2.3:a:xunruicms:xunruicms:*:*:*:*:*:*:*:* Versions up to 4.5.1 Vulnerable ·dayrui

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-38243
2026-10-03 Alias added: GHSA-22vx-3c5q-pcwr

References

Exploit 1

https://github.com/P0wfuu/xunruicms-RCE

TI-2022-12358 XunRuiCMS v4.3.3 to v4.5.1 vulnerable to PHP file write and CMS PHP file inclusion… CVSS 3.1HIGH 7.2
TI-2025-37672 A stored Cross-Site Scripting (XSS) vulnerability has been discovered in XunRuiCMS… CVSS 3.1MEDIUM 6.1
TI-2025-19199 Cross Site Scripting vulnerabilities in Xunruicms v.4.6.3 and before allows a remote… CVSS 3.1MEDIUM 6.1
TI-2025-12797 dayrui XunRuiCMS Add Data Validation admind45f74adbd95.php cross site scripting CVSS 4.0MEDIUM 5.1
TI-2025-13822 dayrui XunRuiCMS JSONP Callback Init.php dr_exit_msg cross site scripting CVSS 4.0MEDIUM 5.3
TI-2025-01002 dayrui XunRuiCMS Linkage.php import_add deserialization CVSS 4.0MEDIUM 5.3

See all 22 →

Sources

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