Vulnerability CVE-2021-29059
Published: 2021-06-21

Description:
A vulnerability was discovered in IS-SVG version 4.3.1 and below where a Regular Expression Denial of Service (ReDOS) occurs if the application is provided and checks a crafted invalid SVG string.

Type:

CWE-770

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Is-svg project -> Is-svg 

 References:
https://github.com/yetingli/SaveResults/blob/main/js/is-svg.js
https://www.npmjs.com/package/is-svg
https://github.com/sindresorhus/is-svg/releases/tag/v4.3.0
https://github.com/yetingli/PoCs/blob/main/CVE-2021-29059/IS-SVG.md
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