TI-2023-14781 Aliases CVE-2023-31045 GHSA-3862-c622-v4fp

A stored Cross-site scripting (XSS) issue in Text Editors and Formats in Backdrop CMS…

MEDIUM 55CWE-79Published 2023-04-24 · Updated 2024-08-02

Key facts

Attack vector: Network
Privileges required: High
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

A stored Cross-site scripting (XSS) issue in Text Editors and Formats in Backdrop CMS before 1.24.2 allows remote attackers to inject arbitrary web script or HTML via the name parameter. When a user is editing any content type (e.g., page, post, or card) as an admin, the stored XSS payload is executed upon selecting a malicious text formatting option. NOTE: the vendor disputes the security relevance of this finding because "any administrator that can configure a text format could easily allow Full HTML anywhere."

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00531 45th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed backdrop/backdrop (Packagist): 1.24.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA
—	backdrop/backdrop (Packagist)	before 1.24.2	1.24.2	Patch available	GHSA-3862-c622-v4fp

— Vendor— Affected all versions Fixed in — No fix listed CNA
backdrop/backdrop (Packagist) Vendor— Affected before 1.24.2 Fixed in 1.24.2 Patch available GHSA-3862-c622-v4fp

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:backdropcms:backdrop_cms::::::::	before 1.24.2	Vulnerable	backdropcms

cpe:2.3:a:backdropcms:backdrop_cms:*:*:*:*:*:*:*:* Versions before 1.24.2 Vulnerable ·backdropcms

Remediation

Fix · GHSA-3862-c622-v4fp backdrop/backdrop (Packagist) Fixed in 1.24.2 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2023-31045
2026-10-03 Alias added: GHSA-3862-c622-v4fp

References

Exploit 1

https://github.com/backdrop/backdrop-issues/issues/6065

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2023-31045

Other 2

TI-2025-39465 Host Header Injection vulnerability in Backdrop CMS 1.32.1 allows attackers to manipulate… CVSS 3.1MEDIUM 6.1
TI-2022-20386 Backdrop CMS version 1.23.0 was discovered to contain a stored cross-site scripting (XSS)… CVSS 3.1MEDIUM 4.8
TI-2022-20385 Backdrop CMS version 1.23.0 was discovered to contain a stored cross-site scripting (XSS)… CVSS 3.1MEDIUM 4.8
TI-2025-18731 Cross-site scripting in backdropcms backdrop CVSS 3.1MEDIUM 4.4
TI-2019-10981 Backdrop CMS 1.12.x before 1.12.8 and 1.13.x before 1.13.3 allows the upload of… CVSS 3.0CRITICAL 9.8
TI-2022-20383 Backdrop CMS 1.22.0 has Unrestricted File Upload vulnerability via 'themes' that allows… CVSS 3.1HIGH 7.2

See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences