PT-2023-25689 · Unknown · Webmention.Js

Psmoros + 1 · Published 2023-07-14 · Updated 2023-07-25 · CVE-2023-3672

Positive Technologies (AI Summary)

CVSS v3.1

7.3

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Name of the Vulnerable Software and Affected Versions webmention.js versions prior to 0.5.5

Description The issue is related to Cross-site Scripting (XSS) - DOM in the webmention.js GitHub repository. This type of attack occurs when an application includes user input in its output without proper validation, allowing an attacker to inject malicious scripts into the website. No information is provided about the estimated number of potentially affected devices or real-world incidents where this issue was exploited.

Recommendations For versions prior to 0.5.5, update to version 0.5.5 or later to resolve the issue. As a temporary workaround, consider restricting user input to minimize the risk of exploitation.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2023-3672

GHSA-R54G-4QQ6-CHXG

Affected Products

Webmention.Js

References · 10

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/3xxx/CVE-2023-3672.json · Exploit
• 🔥 https://huntr.dev/bounties/75cfb7ad-a75f-45ff-8688-32a9c55179aa · Exploit
• https://github.com/plaidweb/webmention.js/commit/3551b66b3e40da37fee89ecf72930c5efdc53011 · Patch
• https://osv.dev/vulnerability/CVE-2023-3672 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-3672 · Security Note
• https://osv.dev/vulnerability/GHSA-r54g-4qq6-chxg · Vendor Advisory
• https://github.com/PlaidWeb/webmention.js/blob/9457e71433c0d2430bbe767ecc5b5837140d0ee4/static/webmention.js#L330 · Note
• https://github.com/plaidweb/webmention.js · Note
• https://t.me/cibsecurity/66723 · Telegram Post
• https://t.me/cvenotify/54366 · Telegram Post