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WordPress Social Login EUVDEUVD-2026-49234

| CVE-2026-65561 MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2026-07-27 Patchstack GHSA-hf2j-gvjf-q7gw
6.5
CVSS 3.1 · Vendor: Patchstack
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Authenticate as contributor
  2. Delivery
    Inject XSS in social profile field
  3. Exploit
    Admin visits compromised page
  4. Execution
    Script executes in admin browser
  5. Persist
    Steal session cookie
  6. Impact
    Impersonate admin

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

The attacker must have a WordPress account with at least Contributor-level privileges (PR:L). The victim must be an administrator or other user who views the page containing the injected payload (UI:R). The attack requires the social login plugin to be active and configured to display user-provided data on admin pages. No special network access is needed; the attack is remote and low complexity.

Impact

CVSS 6.5 (Medium) with vector AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L indicates network-based exploitation requiring contributor privileges and user interaction. No CISA KEV entry, no EPSS score, and no public POC are available in the provided data. The SSVC decision framework would rate exploitation status as 'none' given no evidence of active exploits, and technical impact is low across all CIA metrics. This is a moderate-priority issue: patching should be scheduled during regular maintenance, but no emergency action is warranted.

Exploit ScenarioDerived

A contributor with a valid account crafts a malicious JavaScript payload in a social profile field (e.g., display name). When an administrator visits the plugin's settings or user profile page, the payload executes, stealing the admin's session cookie. The attacker then uses the stolen cookie to impersonate the admin and perform sensitive actions.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 27, 2026

Cross-site scripting (XSS) in WordPress Social Login and Register plugin version 7.8.0 and earlier allows contributor-level attackers to inject arbitrary scripts. An administrator visiting a compromised page could have their session hijacked or be redirected to malicious sites, leading to data exposure or further compromise. No public exploit or active exploitation is confirmed at this time.

RemediationAI

Upgrade to the latest patched version of the plugin (7.8.1 or later) as released by miniOrange. The official advisory is available at https://patchstack.com/database/wordpress/plugin/miniorange-login-openid/vulnerability/wordpress-wordpress-social-login-and-register-plugin-7-8-0-cross-site-scripting-xss-vulnerability. As a workaround, limit contributor-level user accounts and enforce content review by administrators before viewing untrusted content. Disable the social login feature if not essential, though this may break functionality.

Affected VersionsENISA

WordPress Social Login and Register n/a ≤7.8.0

Affected Packages

euvd wordpress_social_login_and_register no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This is a stored cross-site scripting (XSS) vulnerability (CWE-79) in a WordPress plugin that provides social login and registration functionality. The plugin likely fails to properly sanitize user-supplied input (e.g., profile fields from social login providers) before outputting it in pages accessible to administrators. The CPE string indicates all versions up to 7.8.0 are affected. The root cause is insufficient output encoding in the plugin's code, allowing attacker-controlled data to be interpreted as HTML/JavaScript in the victim's browser.

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Severity by source

Vendor (Patchstack) PRIMARY 6.5 MEDIUM
AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
vuln.today AI 6.5 MEDIUM

Requires low-privileged contributor account and user interaction, so PR:L and UI:R; scope change due to XSS.

3.1 AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
4.0 AV:N/AC:L/AT:N/PR:L/UI:R/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low

DescriptionCVE.org

Contributor Cross Site Scripting (XSS) in WordPress Social Login and Register <= 7.8.0 versions.

Threat Intelligence Overview

EPSS Score
0.1%
Top 97% exploitable
Prevalence
Medium
Common WordPress plugin with moderate install base.
Data Quality
4 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.1%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

32
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +32
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

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