Detections
Analytics

SCA: security update for yourls/yourls (GHSA-5h77-88j3-r659)

high Tenable Cloud Security Plugin ID 446220

Description

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

 - YOURLS is a self-hosted, customizable URL shortener written in PHP. From 1.5.1 until 1.10.4, YOURLS stores
 the HTTP Referer header through yourls_get_referrer(), yourls_sanitize_url_safe(), and
 yourls_log_redirect(), then aggregates the value in yourls-infos.php and passes the derived domain through
 yourls_get_domain(), yourls_stats_pie(), and yourls_google_array_to_data_table(). The chart builder
 concatenates labels into inline JavaScript without JavaScript-string escaping, so an unauthenticated
 attacker can poison the statistics of an existing short URL with a crafted referrer. When an administrator
 or public stats-page viewer opens the affected statistics page, attacker-controlled JavaScript executes in
 the YOURLS origin and can access admin-visible data, the API signature token, and privileged same-origin
 actions. This issue is fixed in version 1.10.4. (CVE-2026-63135)

Solution

Update the yourls/yourls library and its related packages to version 1.10.4 or later.

See Also

https://github.com/advisories/GHSA-5h77-88j3-r659

Plugin Details

Severity: High

ID: 446220

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 8/22/2026

Updated: 8/22/2026

Risk Information

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

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

CVSS Score Source: CVE-2026-63135

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/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: 8/21/2026

Vulnerability Publication Date: 8/21/2026

Reference Information

CVE: CVE-2026-63135

cwe: CWE-79