Detections
Analytics

SCA: security update for phpoffice/phpspreadsheet (GHSA-6wpp-88cp-7q68)

medium Tenable Self-Hosted Container Security Plugin ID 440951

Description

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

 - PhpSpreadsheet is a library for reading and writing spreadsheet files. In versions 1.30.3 and earlier,
 2.0.0 through 2.1.15, 2.2.0 through 2.4.4, 3.3.0 through 3.10.4, and 4.0.0 through 5.6.0, the HTML Writer
 skips htmlspecialchars() output escaping when a cell uses a custom number format containing the @ text
 placeholder with additional literal text (e.g., @ "items"). The escaping is only applied when the
 formatted output strictly equals the original cell value. When the format code contains @ with quoted
 literal text, the formatter substitutes the raw cell value into the format string and returns early
 without invoking the escaping callback. An attacker who can control cell content in a spreadsheet
 processed by the HTML Writer can inject arbitrary HTML and JavaScript into the generated output. This
 issue has been fixed in versions 1.30.4, 2.1.16, 2.4.5, 3.10.5, and 5.7.0. (CVE-2026-35453)

Solution

Update the phpoffice/phpspreadsheet library and its related packages to version 1.30.4 or later.

See Also

https://github.com/advisories/GHSA-6wpp-88cp-7q68

Plugin Details

Severity: Medium

ID: 440951

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 4/29/2026

Updated: 6/1/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.39

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.3

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

CVSS Score Source: CVE-2026-35453

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.9

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:P/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 4.8

Threat Score: 1.9

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/28/2026

Vulnerability Publication Date: 4/28/2026

Reference Information

CVE: CVE-2026-35453