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CVE-2025-8038— CSP frame-src was not correctly enforced for paths

Quick assessment

Affected
Mozilla Firefox
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.

Mozilla Firefox等都是美国Mozilla基金会的产品。Mozilla Firefox是一款开源Web浏览器。Mozilla Firefox ESR是Firefox(Web浏览器)的一个延长支持版本。Mozilla Thunderbird是一套从Mozilla Application Suite独立出来的电子邮件客户端软件。 Mozilla多款产品存在数据伪造问题漏洞，该漏洞源于Thunderbird忽略框架导航路径检查。以下产品和版本受到影响：Firefox 141之前版本、Firefox

AI Predicted 5.9 Difficulty: Easy EPSS 0.22% · P14

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 4

VendorProduct Version RangeStatus
Mozilla Firefox 140.1≤ 140.* unaffected
141≤ * unaffected
Mozilla Thunderbird 140.1≤ 140.* unaffected
141≤ * unaffected
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I. Basic Information for CVE-2025-8038

Vulnerability Information
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Vulnerability Title
CSP frame-src was not correctly enforced for paths
Source: CVE Program / CVE List V5
Vulnerability Description
Thunderbird ignored paths when checking the validity of navigations in a frame. This vulnerability was fixed in Firefox 141, Firefox ESR 140.1, Thunderbird 141, and Thunderbird 140.1.
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
Mozilla多款产品 数据伪造问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mozilla Firefox等都是美国Mozilla基金会的产品。Mozilla Firefox是一款开源Web浏览器。Mozilla Firefox ESR是Firefox(Web浏览器)的一个延长支持版本。Mozilla Thunderbird是一套从Mozilla Application Suite独立出来的电子邮件客户端软件。 Mozilla多款产品存在数据伪造问题漏洞，该漏洞源于Thunderbird忽略框架导航路径检查。以下产品和版本受到影响：Firefox 141之前版本、Firefox
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
Mozilla Firefox 140.1 ~ 140.* -
Mozilla Thunderbird 140.1 ~ 140.* -

II. Public POCs for CVE-2025-8038

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III. Intelligence Information for CVE-2025-8038

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Vendor Advisories for CVE-2025-8038 (4)

Same Patch Batch · Mozilla · 2025-07-22 · 16 CVEs total

CVE-2025-8043 Incorrect URL truncation
CVE-2025-8035 Memory safety bugs fixed in Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1,
CVE-2025-8044 Memory safety bugs fixed in Firefox 141 and Thunderbird 141
CVE-2025-8040 Memory safety bugs fixed in Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thun
CVE-2025-8034 Memory safety bugs fixed in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13
CVE-2025-8032 XSLT documents could bypass CSP
CVE-2025-8033 Incorrect JavaScript state machine for generators
CVE-2025-8039 Search terms persisted in URL bar
CVE-2025-8030 Potential user-assisted code execution in “Copy as cURL” command
CVE-2025-8031 Incorrect URL stripping in CSP reports
CVE-2025-8037 Nameless cookies shadow secure cookies
CVE-2025-8028 Large branch table could lead to truncated instruction
CVE-2025-8029 javascript: URLs executed on object and embed tags
CVE-2025-8036 DNS rebinding circumvents CORS
CVE-2025-8027 JavaScript engine only wrote partial return value to stack

IV. Related Vulnerabilities

Same product: Firefox
Same vendor: Mozilla

V. Comments for CVE-2025-8038

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