TI-2023-00261 Aliases CVE-2023-0276 GHSA-2237-qj4m-4cpq

Weaver Xtreme Theme Support < 6.2.7 - Contributor+ Stored XSS

MEDIUM 58Published 2023-04-24 · Updated 2025-02-04

Key facts

Attack vector: Network
Privileges required: Low
User interaction: Required
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: Low · Low · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

The Weaver Xtreme Theme Support WordPress plugin before 6.2.7 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00471 40th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA and NVD

Fix Fixed Weaver Xtreme Theme Support (Unknown): 6.2.7

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
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
Unknown	Weaver Xtreme Theme Support	before 6.2.7	6.2.7	Patch available	CNA

Weaver Xtreme Theme Support VendorUnknown Affected before 6.2.7 Fixed in 6.2.7 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:weavertheme:weaver_xtreme_theme_support::::::wordpress::*	before 6.2.7	Vulnerable	wpweaver

cpe:2.3:a:weavertheme:weaver_xtreme_theme_support:*:*:*:*:*:wordpress:*:* Versions before 6.2.7 Vulnerable ·wpweaver

Remediation

Fix · CNA Weaver Xtreme Theme Support (Unknown) Fixed in 6.2.7

Timeline

2026-10-02 Threatist record created from CVE-2023-0276
2026-10-03 Alias added: GHSA-2237-qj4m-4cpq

References

Exploit 1

https://wpscan.com/vulnerability/d00824a3-7df5-4b52-a31b-5fdfb19c970f

TI-2023-04576 Weaver Xtreme Theme Support < 6.3.1 - Admin+ PHP Object Injection CVSS 3.1HIGH 7.2
TI-2024-04592 Weaver Xtreme Theme Support <= 6.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via div Shortcode CVSS 3.1MEDIUM 6.4
TI-2023-06391 Weaver Xtreme <= 6.3.0 - Authenticated (Contributor+) Stored Cross-Site Scripting CVSS 3.1MEDIUM 5.4

Sources

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