6.4Medium

CVE-2026-2021Slideshow Gallery LITE <= 1.8.5 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'alwaysauto' Shortcode Attribute

contrid Slideshow Gallery LITE Published: 2026-06-18 11:31 (4 months ago)

Description

The Slideshow Gallery LITE plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'alwaysauto' shortcode attribute in all versions up to, and including, 1.8.5. This is due to insufficient input sanitization and output escaping on user-supplied attributes. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Weakness (CWE): CWE-79

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

Vendor	Product	Versions
contrid	Slideshow Gallery LITE	≤ 1.8.5

References and patches

CVSS score

6.4Medium

Source: Wordfence · CVSS 3.1

Attack vector: Network
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Changed
Confidentiality: Low
Integrity: Low
Availability: None

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

All scores (2)

cna	CVSS 3.1	6.4Medium
security@wordfence.com	CVSS 3.1	6.4Medium

EPSS (chance of exploitation in 30 days)

0.20%

higher than 10% of all CVEs

CISA assessment (SSVC)

Exploitation: none
Automatable: no
Technical impact: partial

Timeline

ID reserved2026-02-05
Published2026-06-18 11:31
Reached IP-DB2026-10-24 23:39
Last updated2026-06-18 20:16

Assigned by (CNA): Wordfence
NVD status: Deferred

View at source: CVE.org · NVD

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