SCA: security update for prosemirror_to_html (GHSA-52c5-vh7f-26fx)

high Tenable Cloud Security Plugin ID 435962

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- ProsemirrorToHtml is a JSON converter which takes ProseMirror-compatible JSON and outputs HTML. In
versions 0.2.0 and below, the `prosemirror_to_html` gem is vulnerable to Cross-Site Scripting (XSS)
attacks through malicious HTML attribute values. While tag content is properly escaped, attribute values
are not, allowing attackers to inject arbitrary JavaScript code. Applications that use
`prosemirror_to_html` to convert ProseMirror documents to HTML, user-generated ProseMirror content, and
end users viewing the rendered HTML output are all at risk of attack. This issue is fixed in version
0.2.1. (CVE-2025-64501)

See Also

https://github.com/advisories/GHSA-52c5-vh7f-26fx

Plugin Details

Severity: High

ID: 435962

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 11/7/2025

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3.9

Percentile: 52.37

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:P/A:N

CVSS Score Source: CVE-2025-64501

CVSS v3

Risk Factor: High

Base Score: 7.6

Temporal Score: 6.6

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 11/6/2025

Vulnerability Publication Date: 11/6/2025

Reference Information

CVE: CVE-2025-64501

cwe: CWE-79