🛡️ CVE-2021-4103 — vditor

⚪ Unknown ✅ No Known Exploit CWE-79 OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

vditor Vulnerable to Cross-site Scripting in SVG events

vditor does not filter user input in SVG events, leading to XSS

PoC

```html

</a>

<svg><animate onbegin=alert(11) attributeName=x dur=1s>

```

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. A user must be tricked into taking some action. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality low, integrity low, availability none.

Weakness class

CVE-2021-4103 is classified as CWE-79: Cross-site Scripting (XSS). User-supplied data is written into a page without escaping, so attacker script runs in the browser of anyone who views it.

Affected software

CVE-2021-4103 is recorded against 1 package.

  • vditor

Timeline and source

Published on 28 January 2022 and last revised on 8 November 2023. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)
github.com (Package)
huntr.dev (Web)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CWE CWE-79
Public Exploit ✅ No
Source OSV
Published 2022-01-28
Updated 2026-08-12
Modified 2023-11-08
Fix URL N/A

Affected Packages

Software From version Fixed in
vditor — —

Similar Threats

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