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CVE-2025-7734— Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

Quick assessment

Affected
GitLab GitLab
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.

GitLab是美国GitLab公司的一个开源的端到端软件开发平台，具有内置的版本控制、问题跟踪、代码审查、CI/CD（持续集成和持续交付）等功能。 GitLab CE/EE 18.0.6之前版本、18.1.4之前版本和18.2.2之前版本存在跨站脚本漏洞，该漏洞源于恶意内容注入可能导致代表用户执行操作。

CVSS 8.7 · High EPSS 0.32% · P23

Possible ATT&CK Techniques 1 AI

T1566.001 · Spearphishing Attachment
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I. Basic Information for CVE-2025-7734

Vulnerability Information
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Vulnerability Title
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
Source: CVE Program / CVE List V5
Vulnerability Description
An issue has been discovered in GitLab CE/EE affecting all versions from 14.2 before 18.0.6, 18.1 before 18.1.4 and 18.2 before 18.2.2 that, under certain conditions, could have allowed a successful attacker to execute actions on behalf of users by injecting malicious content.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/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
GitLab 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GitLab是美国GitLab公司的一个开源的端到端软件开发平台，具有内置的版本控制、问题跟踪、代码审查、CI/CD（持续集成和持续交付）等功能。 GitLab CE/EE 18.0.6之前版本、18.1.4之前版本和18.2.2之前版本存在跨站脚本漏洞，该漏洞源于恶意内容注入可能导致代表用户执行操作。
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
GitLab GitLab 14.2 ~ 18.0.6 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2025-7734

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III. Intelligence Information for CVE-2025-7734

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Same Patch Batch · GitLab · 2025-08-13 · 11 CVEs total

CVE-2025-6186 8.7 HIGH Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Gi
CVE-2025-7739 8.7 HIGH Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Gi
CVE-2024-12303 6.7 MEDIUM Incorrect Privilege Assignment in GitLab
CVE-2024-10219 6.5 MEDIUM Incorrect Authorization in GitLab
CVE-2025-1477 6.5 MEDIUM Allocation of Resources Without Limits or Throttling in GitLab
CVE-2025-2614 6.5 MEDIUM Allocation of Resources Without Limits or Throttling in GitLab
CVE-2025-2937 6.5 MEDIUM Inefficient Regular Expression Complexity in GitLab
CVE-2025-8770 6.5 MEDIUM Authorization Bypass Through User-Controlled Key in GitLab
CVE-2025-5819 5.0 MEDIUM Incorrect Permission Assignment for Critical Resource in GitLab
CVE-2025-2498 3.1 LOW Insufficient Granularity of Access Control in GitLab

IV. Related Vulnerabilities

Same product: GitLab
Same vendor: GitLab
Same weakness: CWE-79

V. Comments for CVE-2025-7734

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