Detections
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SCA: security update for mailgen (GHSA-xw6r-chmh-vpmj)
medium Tenable Self-Hosted Container Security Plugin ID 435617
Description
There are packages installed that are affected by a vulnerability referenced in the following CVE:- mailgen is a Node.js package that generates responsive HTML e-mails for sending transactional mail.
Mailgen versions through 2.0.30 contain an HTML injection vulnerability in plaintext emails produced by
the generatePlaintext method when user‑generated content is supplied. The function attempts to remove HTML
tags, but if tags are provided as encoded HTML entities they are not removed and are later decoded,
resulting in active HTML (for example an img tag with an event handler) in the supposed plaintext output.
In contexts where the generated plaintext string is subsequently rendered as HTML, this can allow
execution of attacker‑controlled JavaScript. Versions 2.0.31 and later contain a fix. No known workarounds
exist. (CVE-2025-62366)
See Also
Plugin Details
Severity: Medium
ID: 435617
Version: Revision 1.9
Type: Local
Family: SCA Checks
Published: 10/14/2025
Updated: 7/2/2026
Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security
Risk Information
VPR
Risk Factor: Low
Score: 2.3
Percentile: 9.07
Vendor
Vendor Severity: Low
CVSS v2
Risk Factor: Medium
Base Score: 4.3
Temporal Score: 3.2
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N
CVSS Score Source: CVE-2025-62366
CVSS v3
Risk Factor: Medium
Base Score: 6.1
Temporal Score: 5.3
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: Medium
Base Score: 6.3
Threat Score: 1.7
Threat Vector: CVSS:4.0/E:P
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Vulnerability Information
Exploit Ease: No known exploits are available
Patch Publication Date: 10/14/2025
Vulnerability Publication Date: 10/14/2025
Reference Information
CVE: CVE-2025-62366
cwe: CWE-79