SCA: security update for slim/slim (GHSA-53h4-8rc4-f539)

medium Tenable Self-Hosted Container Security Plugin ID 443841

Description

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

- Slim is a PHP micro framework that enables users to write simple web applications and APIs. In versions
4.4.0 through 4.15, if an application uses HttpException::setTitle() and/or setDescription() to include
untrusted/request-derived data in the error title or description (e.g. "No products found matching
'{$query}'."), an attacker could inject arbitrary HTML/JavaScript that executes in the victim's browser
when they encounter an HTML error page generated by Slim. The vulnerability is present even with
displayErrorDetails = false as the unescaped title and description are rendered on this error path. Built-
in exceptions (HttpNotFoundException, HttpBadRequestException, etc.) ship plain-text defaults, so a
vanilla Slim app with no user code is not exploitable. Only applications that feed untrusted data into
setTitle() and/or setDescription() are affected. The issue has been fixed in 4.15.2. If developers are
unable to immediately update their applications, they can work around this issue by avoiding passing
untrusted/request-derived data into HttpException::setTitle() and setDescription() and using static,
plain-text error copy instead. They should also register a custom error renderer (an
ErrorRendererInterface implementation, or a subclass of HtmlErrorRenderer that escapes the title and
description) for the HTML media type. (CVE-2026-48157)

Solution

Update the slim/slim library and its related packages to version 4.15.2 or later.

See Also

https://github.com/advisories/GHSA-53h4-8rc4-f539

Plugin Details

Severity: Medium

ID: 443841

Version: Revision 1.2

Type: Local

Family: SCA Checks

Published: 6/24/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 2.3

Percentile: 9.48

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2026-48157

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/23/2026

Vulnerability Publication Date: 6/15/2026

Reference Information

CVE: CVE-2026-48157

cwe: CWE-79