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CVE-2025-8546— atjiu pybbs Verification Code login Captcha

Quick assessment

Affected
atjiu pybbs
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.

pybbs是iuiu个人开发者的一个Java开发的社区平台。 pybbs 6.0.0及之前版本存在安全漏洞，该漏洞源于验证码处理组件中函数adminlogin/login存在可猜测验证码问题。

CVSS 5.3 · Medium EPSS 0.45% · P37

Possible ATT&CK Techniques 1 AI

T1110 · Brute Force
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I. Basic Information for CVE-2025-8546

Vulnerability Information
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Vulnerability Title
atjiu pybbs Verification Code login Captcha
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability, which was classified as problematic, was found in atjiu pybbs up to 6.0.0. This affects the function adminlogin/login of the component Verification Code Handler. The manipulation leads to guessable captcha. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The patch is named ecaf8d46944fd03e3c4ea05698f8acf0aaa570cf. It is recommended to apply a patch to fix this issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
可猜测的验证码
Source: CVE Program / CVE List V5
Vulnerability Title
pybbs 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
pybbs是iuiu个人开发者的一个Java开发的社区平台。 pybbs 6.0.0及之前版本存在安全漏洞，该漏洞源于验证码处理组件中函数adminlogin/login存在可猜测验证码问题。
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
atjiu pybbs 6.0 -

II. Public POCs for CVE-2025-8546

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III. Intelligence Information for CVE-2025-8546

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Same Patch Batch · atjiu · 2025-08-05 · 10 CVEs total

CVE-2025-8547 5.3 MEDIUM atjiu pybbs Email Verification improper authorization
CVE-2025-8548 3.7 LOW atjiu pybbs Registered Email SettingsApiController.java sendEmailCode information exposure
CVE-2025-8549 3.7 LOW atjiu pybbs UserAdminController.java update weak password
CVE-2025-8551 3.5 LOW atjiu pybbs list cross site scripting
CVE-2025-8555 3.5 LOW atjiu pybbs search cross site scripting
CVE-2025-8554 2.4 LOW atjiu pybbs list cross site scripting
CVE-2025-8550 2.4 LOW atjiu pybbs list cross site scripting
CVE-2025-8553 2.4 LOW atjiu pybbs list cross site scripting
CVE-2025-8552 2.4 LOW atjiu pybbs list cross site scripting

IV. Related Vulnerabilities

Same product: pybbs
Same vendor: atjiu
Same weakness: CWE-804

V. Comments for CVE-2025-8546

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