TI-2025-00367 Aliases CVE-2025-0450 GHSA-hq4j-7m45-9jhp

Betheme <= 27.6.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Custom JS

LOW 28CWE-79Published 2025-01-21 · Updated 2026-04-08

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

The Betheme plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's custom JS functionality in all versions up to, and including, 27.6.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00247 16th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

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
MuffinGroup	Betheme	up to 27.6.1	—	No fix listed	CNA

Betheme VendorMuffinGroup Affected up to 27.6.1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:muffingroup:betheme::::::wordpress::*	before 27.6.2	Vulnerable	MuffinGroup

cpe:2.3:a:muffingroup:betheme:*:*:*:*:*:wordpress:*:* Versions before 27.6.2 Vulnerable ·MuffinGroup

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-0450
2026-10-03 Alias added: GHSA-hq4j-7m45-9jhp

References

Advisory 1

https://www.wordfence.com/threat-intel/vulnerabilities/id/340c14ea-70b9-4f60-84b3-97328432f110?source=cve

Other 1

https://support.muffingroup.com/changelog/

TI-2022-03539 Betheme <= 26.5.1.4 - Authenticated (Subscriber+) PHP Object Injection CVSS 3.1HIGH 8.8
TI-2024-02509 Betheme <= 27.5.6 - Authenticated (Contributor+) PHP Object Injection CVSS 3.1HIGH 8.8
TI-2022-22322 WordPress Betheme premium theme <= 26.6.1 - Broken Access Control vulnerability CVSS 3.1HIGH 8.8
TI-2022-22167 WordPress Betheme theme <= 26.5.1.4 - Auth. PHP Object Injection vulnerability CVSS 3.1HIGH 8.8
TI-2023-20890 WordPress BeTheme theme <= 27.1.1 - Author+ Broken Access Control vulnerability CVSS 3.1HIGH 8.2
TI-2022-22319 WordPress Betheme theme <= 26.6.1 is vulnerable to Broken Access Control CVSS 3.1HIGH 8.1

See all 15 →

Sources

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