High severity · published Jun 21, 2021
CVE-2021-29059
A vulnerability was discovered in IS-SVG version 2.1.0 to 4.2.2 and below where a Regular Expression Denial of Service (ReDOS) occurs if the application is provided and checks a…
7.5
CVSS
2.6%
EPSS
No
On KEV
Description
A vulnerability was discovered in IS-SVG version 2.1.0 to 4.2.2 and below where a Regular Expression Denial of Service (ReDOS) occurs if the application is provided and checks a crafted invalid SVG string.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.6% · higher than 85% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IS
Is-svg · Is-svg Project
2.1.0 before 4.3.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-29059
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-29059
Release Notes
https://github.com/sindresorhus/is-svg/releases/tag/v4.3.0
Exploit
https://github.com/yetingli/PoCs/blob/main/CVE-2021-29059/IS-SVG.md
Third Party Advisory
https://github.com/yetingli/SaveResults/blob/main/js/is-svg.js
Product
https://www.npmjs.com/package/is-svg
More from Is-svg
7.5
CVE-2021-28092
The is-svg package 2.1.0 through 4.2.1 for Node.js uses a regular expression that is vulnerable to Regular Expression Denial of Service (ReDoS)