What is the CVSS score of CVE-2026-39507?

CVE-2026-39507 has a CVSS 3.1 base score of 7.1 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L. EPSS exploitation probability: 0.2%.

Which versions of Social Slider Feed are affected by CVE-2026-39507?

The Social Slider Feed WordPress plugin (versions ≤ 2.3.2, widely deployed by ThemeIsle) contains a cross-site scripting vulnerability that enables attackers to inject malicious code into affected…

How to fix or mitigate CVE-2026-39507?

Within 24 hours: Identify and inventory all WordPress installations running Social Slider Feed plugin version ≤ 2.3.2 across your organization. Within 7 days: Disable or deactivate the affected plugin versions on production WordPress instances; if plugin functionality is required, implement Web Application Firewall rules to block common XSS payloads targeting the plugin's input parameters. Within 30 days: Monitor ThemeIsle and Patchstack repositories for Social Slider Feed security updates; test and deploy patched version > 2.3.2 to staging environment for verification before production rollout.

Social Slider Feed CVE-2026-39507

EUVD-2026-36949 HIGH

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

2026-06-15 Patchstack

GHSA-gqg3-6xw2-phxp

XSS Social Slider Feed

7.1

CVSS 3.1 · Vendor: Patchstack

Severity by source

Vendor (Patchstack) PRIMARY

7.1 HIGH

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

vuln.today AI

7.1 HIGH

Network-reachable WordPress plugin XSS, no auth needed (PR:N) but requires victim click (UI:R); injected script crosses into the WordPress origin (S:C) with limited C/I/A impact.

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

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

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Lifecycle Timeline

Analysis Generated

Jun 15, 2026 - 22:24 vuln.today

DescriptionCVE.org

Unauthenticated Cross Site Scripting (XSS) in Social Slider Feed <= 2.3.2 versions.

AnalysisAI

Unauthenticated reflected/stored cross-site scripting in the Social Slider Feed WordPress plugin (versions ≤ 2.3.2, developed by ThemeIsle) allows remote attackers to inject malicious JavaScript that executes in a victim's browser after user interaction. The flaw was reported by Patchstack and tracked as EUVD-2026-36949; no public exploit identified at time of analysis and the issue is not listed in CISA KEV. Because exploitation crosses a privilege boundary (S:C) and requires only a user clicking a crafted link, it is a realistic phishing/account-takeover vector against WordPress sites running the plugin.

Technical ContextAI

Social Slider Feed (originally distributed as the 'instagram-slider-widget' plugin per the Patchstack reference) is a WordPress plugin maintained by ThemeIsle that renders social-media slider widgets on WordPress pages. The CPE cpe:2.3:a:themeisle:social_slider_feed:*:*:*:*:*:*:*:* covers all versions through 2.3.2. The root cause is CWE-79 (Improper Neutralization of Input During Web Page Generation): user-controlled input is reflected or stored into HTML output without proper escaping/sanitization, letting an attacker inject script tags or HTML attributes that execute when rendered in another user's browser session within the WordPress site origin.

RemediationAI

Patch available per vendor advisory - upgrade the Social Slider Feed plugin to the latest version published on the WordPress.org plugin repository (the Patchstack advisory at https://patchstack.com/database/wordpress/plugin/instagram-slider-widget/vulnerability/wordpress-social-slider-feed-plugin-2-3-2-cross-site-scripting-xss-vulnerability lists the fixed release; no exact fix version was provided in the supplied intelligence, so verify against the WordPress plugin changelog before deployment). If immediate patching is not possible, deactivate and remove the plugin (side effect: social slider widgets will disappear from the site), or place the site behind a WAF such as Patchstack/Wordfence with XSS rules enabled (side effect: may produce false positives on legitimate widget content). Additionally, enforce a strict Content-Security-Policy that disallows inline scripts to blunt reflected payloads (side effect: may break other plugins or themes that rely on inline JS).