PT-2021-18780 · Htmly · Htmly

G0H3Aler · Published 2021-04-13 · Updated 2021-04-16 · CVE-2021-30637

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions htmly version 2.8.0

Description The issue allows stored XSS via the blog title, Tagline, or Description to config.html.php. This can be exploited to inject malicious scripts into the application.

Recommendations For htmly version 2.8.0, as a temporary workaround, consider validating and sanitizing user input for the blog title, Tagline, and Description fields to prevent XSS attacks. Restrict access to the config.html.php file to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-30637

Affected Products

Htmly

References · 7

• 🔥 https://github.com/danpros/htmly/issues/456 · Exploit
• 🔥 https://exploit-db.com/exploits/49772 · Exploit
• 🔥 http://packetstormsecurity.com/files/162195/htmly-2.8.0-Cross-Site-Scripting.html · Exploit
• https://osv.dev/vulnerability/CVE-2021-30637 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-30637 · Security Note
• https://t.me/cvenotify/13388 · Telegram Post
• https://t.me/cvenotify/13145 · Telegram Post