benjjvi PyBB up to 0.1.0 cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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4.5$0-$5k0.00

A vulnerability was found in benjjvi PyBB up to 0.1.0. It has been declared as problematic. Affected by this vulnerability is an unknown part. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect integrity. The summary by CVE is:

PyBB is an open source bulletin board. A manual code review of the PyBB bulletin board server has revealed that a vulnerability could have been exploited in which users could submit any type of HTML tag, and have said tag run. For example, a malicious `` that looks like ```xss``` could have been used to run code through JavaScript on the client side. The problem has been patched as of commit `5defd92`, and users are advised to upgrade. Attackers do need posting privilege in order to exploit this vulnerability. This vulnerability is present within the 0.1.0 release, and users are advised to upgrade to 0.1.1. Users unable to upgrade may be able to work around the attack by either; Removing the ability to create posts, removing the `|safe` tag from the Jinja2 template titled "post.html" in templates or by adding manual validation of links in the post creation section.

The weakness was published 06/20/2023 as GHSA-mv96-w49p-438p. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2023-34461 since 06/06/2023. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

Upgrading to version 0.1.1 eliminates this vulnerability. Applying the patch 5defd922ab05a193a783392d447c6538628cf854 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.5

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.4
NVD Vector: 🔍

CNA Base Score: 4.6
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

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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: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: PyBB 0.1.1
Patch: 5defd922ab05a193a783392d447c6538628cf854

Timelineinfo

06/06/2023 🔍
06/20/2023 +14 days 🔍
06/20/2023 +0 days 🔍
07/15/2023 +25 days 🔍

Sourcesinfo

Advisory: GHSA-mv96-w49p-438p
Status: Confirmed

CVE: CVE-2023-34461 (🔍)

Entryinfo

Created: 06/20/2023 07:34 AM
Updated: 07/15/2023 04:32 PM
Changes: 06/20/2023 07:34 AM (52), 07/15/2023 04:32 PM (11)
Complete: 🔍
Cache ID: 18:C3F:40

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