CVE-2026-129155

DjangoBlog 2.0.0.0 through 2.1.0.0 Stored XSS via Comment Sanitizer class_filter

Published Nov 13, 2026 CVSS 4.0 · 5.1 Medium EPSS n/a KEV · Not listed

Description

DjangoBlog 2.0.0.0 through 2.1.0.0 contains a stored cross-site scripting vulnerability because the class_filter comment sanitizer passes event-handler attributes on span, div, pre and code tags. Authenticated commenters can post a div with autofocus and onfocus attributes, executing script without interaction for every visitor, including administrators.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

liangliangyy

DjangoBlog

unaffected

Version	Status	Constraints
`2.0.0.0`	affected	≤ 2.1.0.0

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

No advisories available

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/liangliangyy/DjangoBlog/blob/55655f236308841e0e83f5b383b1c2056a0fb48c/blog/templatetags/blog_tags.py#L138-L141
https://github.com/liangliangyy/DjangoBlog/blob/55655f236308841e0e83f5b383b1c2056a0fb48c/djangoblog/utils.py#L248-L269
https://github.com/liangliangyy/DjangoBlog/issues/1030
https://vul.yulun.ac.cn/20261101/djangoblog/
https://www.vulncheck.com/advisories/djangoblog-2.0.0.0-through-2.1.0.0-stored-xss-via-comment-sanitizer-class-filter

History

Nov 13, 2026 5:30 PM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		DjangoBlog 2.0.0.0 through 2.1.0.0 contains a stored cross-site scripting vulnerability because the class_filter comment sanitizer passes event-handler attributes on span, div, pre and code tags. Authenticated commenters can post a div with autofocus and onfocus attributes, executing script without interaction for every visitor, including administrators.
Title		DjangoBlog 2.0.0.0 through 2.1.0.0 Stored XSS via Comment Sanitizer class_filter
Weaknesses		CWE-79
References		https://github.com/liangliangyy/DjangoBlog/blob/55655f236308841e0e83f5b383b1c2056a0fb48c/blog/templatetags/blog_tags.py#L138-L141 https://github.com/liangliangyy/DjangoBlog/blob/55655f236308841e0e83f5b383b1c2056a0fb48c/djangoblog/utils.py#L248-L269 https://github.com/liangliangyy/DjangoBlog/issues/1030 https://vul.yulun.ac.cn/20261101/djangoblog/ https://www.vulncheck.com/advisories/djangoblog-2.0.0.0-through-2.1.0.0-stored-xss-via-comment-sanitizer-class-filter
Metrics		cvssV3_1 `{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}` cvssV4_0 `{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N'}`