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CVE-2026-76931— Zephyr Project Manager <= 3.3.205 - Authenticated (Custom+) Stored Cross-Site Scripting via 'message' Parameter

Quick assessment

Affected
dylanjkotze Zephyr Project Manager
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress Zephyr Project Manager是WordPress基金会的一款支持项目规划、任务分配与进度跟踪的团队协作工具。 WordPress Zephyr Project Manager 3.3.205及之前版本存在存储型跨站脚本跨站脚本漏洞，该漏洞源于对‘message’参数的输入清理和输出转义不足，可能导致已认证且具有Custom级及以上访问权限的攻击者注入任意Web脚本，在用户访问被注入页面时执行。该漏洞仅在“Directly link to project”插件设置被禁用时

CVSS 6.4 · Medium EPSS 0.33% · P24

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 1

VendorProduct Version RangeStatus
dylanjkotze Zephyr Project Manager ≤ 3.3.205 affected
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I. Basic Information for CVE-2026-76931

Vulnerability Information
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Vulnerability Title
Zephyr Project Manager <= 3.3.205 - Authenticated (Custom+) Stored Cross-Site Scripting via 'message' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
The Zephyr Project Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘message’ parameter in all versions up to, and including, 3.3.205 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Custom-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The vulnerability can only be exploited when the 'Directly link to project' plugin setting is disabled.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress Zephyr Project Manager 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress Zephyr Project Manager是WordPress基金会的一款支持项目规划、任务分配与进度跟踪的团队协作工具。 WordPress Zephyr Project Manager 3.3.205及之前版本存在存储型跨站脚本跨站脚本漏洞，该漏洞源于对‘message’参数的输入清理和输出转义不足，可能导致已认证且具有Custom级及以上访问权限的攻击者注入任意Web脚本，在用户访问被注入页面时执行。该漏洞仅在“Directly link to project”插件设置被禁用时
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
dylanjkotze Zephyr Project Manager 0 ~ 3.3.205 -

II. Public POCs for CVE-2026-76931

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III. Intelligence Information for CVE-2026-76931

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Vendor Pages for CVE-2026-76931 (1)

IV. Related Vulnerabilities

Same product: Zephyr Project Manager
Same vendor: dylanjkotze
Same weakness: CWE-79

V. Comments for CVE-2026-76931

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