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CVE-2026-84677

Quick assessment

Affected
Jenkins Project Jenkins update-center2
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.

Jenkins update-center2是Jenkins组织的一个持续集成和交付工具的更新中心。 Jenkins update-center2 3.18.3及之前版本存在跨站脚本漏洞，该漏洞源于未对插件提供的值（插件名称、描述和版本元数据）进行转义，可能导致存储型跨站脚本攻击。

AI Predicted 5.4 Difficulty: Moderate EPSS 0.14% · P3

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 1

VendorProduct Version RangeStatus
Jenkins Project Jenkins update-center2 ≤ 3.18.3 affected
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I. Basic Information for CVE-2026-84677

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Jenkins update-center2 3.18.3 and earlier does not escape plugin-provided values (plugin names, descriptions, and version metadata) on plugin download index pages, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to provide a plugin for hosting.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Jenkins update-center2 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Jenkins update-center2是Jenkins组织的一个持续集成和交付工具的更新中心。 Jenkins update-center2 3.18.3及之前版本存在跨站脚本漏洞，该漏洞源于未对插件提供的值（插件名称、描述和版本元数据）进行转义，可能导致存储型跨站脚本攻击。
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
Jenkins Project Jenkins update-center2 0 ~ 3.18.3 -

II. Public POCs for CVE-2026-84677

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III. Intelligence Information for CVE-2026-84677

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Same Patch Batch · Jenkins Project · 2026-09-02 · 33 CVEs total

CVE-2026-84659 Jenkins Script Security Plugin 授权问题漏洞
CVE-2026-84645 Jenkins 输入验证错误漏洞
CVE-2026-84646 Jenkins 反序列化注入漏洞
CVE-2026-84647 Jenkins 反序列化注入漏洞
CVE-2026-84648 Jenkins 跨站脚本漏洞
CVE-2026-84650 Jenkins 反序列化注入漏洞
CVE-2026-84649 Jenkins 跨站请求伪造漏洞
CVE-2026-84651 Jenkins 权限许可和访问控制问题漏洞
CVE-2026-84653 Jenkins 安全漏洞
CVE-2026-84652 Jenkins 安全漏洞
CVE-2026-84654 Jenkins 输入验证错误漏洞
CVE-2026-84655 Jenkins 输出处理不当漏洞
CVE-2026-84656 Jenkins 授权问题漏洞
CVE-2026-84657 Jenkins 授权问题漏洞
CVE-2026-84658 Jenkins Script Security Plugin 信息泄露漏洞
CVE-2026-84660 Jenkins Pipeline: Build Step Plugin 授权问题漏洞
CVE-2026-84675 Jenkins TICS Plugin 命令注入漏洞
CVE-2026-84661 Jenkins Pipeline: Build Step Plugin 授权问题漏洞
CVE-2026-84662 Jenkins LDAP Plugin 输入验证错误漏洞
CVE-2026-84663 Jenkins Pipeline: Groovy Libraries Plugin 跨站请求伪造漏洞

Showing top 20 of 33 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Jenkins update-center2
Same vendor: Jenkins Project

V. Comments for CVE-2026-84677

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