Detections
Analytics

SCA: security update for svelte (GHSA-f7gr-6p89-r883)

medium Tenable Cloud Security Plugin ID 437868

Description

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

 - svelte performance oriented web framework. Versions of svelte prior to 5.51.5 are vulnerable to cross-site
 scripting (XSS) during server-side rendering. When using spread syntax to render attributes from untrusted
 data, event handler properties are included in the rendered HTML output. If an application spreads user-
 controlled or external data as element attributes, an attacker can inject malicious event handlers that
 execute in victims' browsers. This vulnerability is fixed in 5.51.5. (CVE-2026-27121)

See Also

https://github.com/advisories/GHSA-f7gr-6p89-r883

Plugin Details

Severity: Medium

ID: 437868

Version: Revision 1.8

Type: Local

Family: SCA Checks

Published: 2/19/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 2.3

Percentile: 9.42

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.1

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

CVSS Score Source: CVE-2026-27121

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/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: 5.1

Threat Score: 1.2

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 2/19/2026

Vulnerability Publication Date: 2/19/2026

Reference Information

CVE: CVE-2026-27121

cwe: CWE-79