baserproject basercms up to 5.2.2 Blog Post cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.1$0-$5k0.38

Summaryinfo

A vulnerability classified as problematic has been found in baserproject basercms up to 5.2.2. This issue affects some unknown processing of the component Blog Post Handler. This manipulation causes cross site scripting. This vulnerability is registered as CVE-2026-30879. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in baserproject basercms up to 5.2.2 and classified as problematic. Affected by this vulnerability is some unknown processing of the component Blog Post Handler. 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:

baserCMS is a website development framework. Prior to version 5.2.3, baserCMS has a cross-site scripting vulnerability in blog posts. This issue has been patched in version 5.2.3.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-30879 since 03/06/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

Upgrading to version 5.2.3 eliminates this vulnerability. The upgrade is hosted for download at github.com.

The vulnerability is also documented in the vulnerability database at CNNVD (CNNVD-202603-6289). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Vendor

Name

Version

License

Website

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: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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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: 🔒
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: basercms 5.2.3

Timelineinfo

03/06/2026 CVE reserved
03/31/2026 +24 days Advisory disclosed
03/31/2026 +0 days VulDB entry created
04/02/2026 +2 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-jmq3-x8q7-j9qm
Status: Confirmed

CVE: CVE-2026-30879 (🔒)
GCVE (CVE): GCVE-0-2026-30879
GCVE (VulDB): GCVE-100-354325
CNNVD: CNNVD-202603-6289 - baserCMS 跨站脚本漏洞

Entryinfo

Created: 03/31/2026 08:17
Updated: 04/02/2026 06:25
Changes: 03/31/2026 08:17 (70), 04/02/2026 06:25 (6)
Complete: 🔍
Cache ID: 216:A1B:103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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