VDB-318684 · Submit #622199 · CVE-2025-8555

atjiu pybbs up to 6.0.0 /search keyword cross site scripting

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.0	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in atjiu pybbs up to 6.0.0. This vulnerability affects unknown code of the file /search. The manipulation of the argument keyword results in cross site scripting. This vulnerability is cataloged as CVE-2025-8555. The attack may be launched remotely. Furthermore, there is an exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability, which was classified as problematic, was found in atjiu pybbs up to 6.0.0. Affected is some unknown functionality of the file /search. The manipulation of the argument keyword with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2025-8555. The exploitability is told to be easy. It is possible to launch the attack remotely. Successful exploitation requires user interaction by the victim. Technical details and a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1059.007.

The exploit is shared for download at github.com. It is declared as proof-of-concept.

Applying the patch 2fe4a51afbce0068c291bc1818bbc8f7f3b01a22 is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-23619). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

atjiu

Name

pybbs

Version

License

open-source

Website

Product: https://github.com/atjiu/pybbs/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔍
CNA CVSS-BT Score: 🔍
CNA Vector: 🔍

CVSSv3info

VulDB Meta Base Score: 4.1
VulDB Meta Temp Score: 4.0

VulDB Base Score: 3.5
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.4
NVD Vector: 🔍

CNA Base Score: 3.5
CNA Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 2fe4a51afbce0068c291bc1818bbc8f7f3b01a22

Timelineinfo

08/04/2025 🔍
08/04/2025 +0 days 🔍
09/03/2025 +29 days 🔍

Sourcesinfo

Product: github.com

Advisory: 208
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2025-8555 (🔍)
GCVE (CVE): GCVE-0-2025-8555
GCVE (VulDB): GCVE-100-318684
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/04/2025 15:10
Updated: 09/03/2025 01:45
Changes: 08/04/2025 15:10 (60), 08/05/2025 12:26 (30), 08/05/2025 15:04 (1), 08/05/2025 15:11 (1), 09/03/2025 01:45 (11)
Complete: 🔍
Submitter: ZAST.AI
Cache ID: 216::103

Submitinfo

Accepted

Submit #622199: atjiu https://github.com/atjiu/pybbs <=6.0.0 Reflected XSS (by ZAST.AI)