CVE-2021-25986Network attack vector

Stored XSS via unescaped notification messages

Published Nov 23, 2021 · Updated Apr 30, 2025

Stored XSS in django-wiki 0.0.20 through 0.7.8 allows remote authenticated users to execute JavaScript through crafted page titles. The notification UI inserts the title-derived n.message value into an HTML string instead of constructing a text node, causing the browser to interpret embedded markup and script. Execution requires page-edit permission and a victim who loads the resulting notification panel, exposing that browser session to script actions.

CVSS severity5.4
Medium
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in django-wiki 0.0.20 through 0.7.8 allows remote authenticated users to execute JavaScript through crafted page titles. The notification UI inserts the title-derived n.message value into an HTML string instead of constructing a text node, causing the browser to interpret embedded markup and script. Execution requires page-edit permission and a victim who loads the resulting notification panel, exposing that browser session to script actions.

The record

CVE
CVE-2021-25986
Published
Nov 23, 2021
Updated
Apr 30, 2025
Vendor
django-wiki
Product
django-wiki
Classifications
CWE-79
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 23, 2021CVE publishedPublication date reported by the CVE source.
  2. Apr 30, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.0.20 <unspecified
  2. Affected versionversion=unspecified <=0.7.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

django-wiki · django-wikiversion=0.0.20 <unspecified; version=unspecified <=0.7.8

Published CVSS scores

5.4NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.1GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
3.5NVDAV:N/AC:M/Au:S/C:N/I:P/A:N
5.4MendCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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