What is the CVSS score of CVE-2026-5361?

CVE-2026-5361 has a CVSS 3.1 base score of 6.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.0%.

Envira Gallery Image Photo Gallery Albums Video Gallery Slideshows More CVE-2026-5361

EUVD-2026-30215 MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2026-05-14 Wordfence

GHSA-fm2p-2whf-w32j

XSS WordPress Envira Gallery Image Photo Gallery Albums Video Gallery Slideshows More

6.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.4 MEDIUM

AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Jun 08, 2026 - 10:53 vuln.today

CVE Published

May 14, 2026 - 03:27 nvd

MEDIUM 6.4

DescriptionCVE.org

The Envira Gallery Lite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the REST API in versions up to and including 1.12.4. This is due to insufficient input sanitization in the update_gallery_data() function and improper output escaping in the gallery_init() function. The sanitize_config_values() function only sanitizes the justified_gallery_theme and justified_row_height parameters, but does not sanitize the arrows parameter. When the arrows value is output in the inline JavaScript configuration, it uses esc_attr() which is designed for HTML attribute contexts, not JavaScript contexts, allowing JavaScript expression injection. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

AnalysisAI

Stored Cross-Site Scripting in Envira Gallery Lite (WordPress plugin, versions ≤ 1.12.4) enables authenticated attackers with Author-level access to inject persistent arbitrary JavaScript into gallery pages via the REST API. The attack exploits a context mismatch: the arrows gallery parameter is omitted from sanitize_config_values() sanitization, and gallery_init() escapes it with esc_attr() — a function designed for HTML attribute contexts, not inline JavaScript — allowing JavaScript expression injection that executes in any visitor's browser. No public exploit or active exploitation has been identified; EPSS is 0.01% and CISA KEV status is absent, placing this firmly in the low-immediate-risk tier despite its persistent, cross-user impact.