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VikRentCar EUVDEUVD-2026-108628

| CVE-2026-112835 HIGH
Cross-site Scripting (XSS) (CWE-79)
2026-10-23 Patchstack GHSA-p242-xw57-xmr9
7.1
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
    Craft malicious URL with script payload
  2. Delivery
    Deliver link to targeted user
  3. Exploit
    Victim opens crafted link
  4. Execution
    Payload reflected into page and executes in browser
  5. Impact
    Session hijack or actions as victim

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

Exploitation requires an attacker to lure a user into opening a crafted link targeting the vulnerable VikRentCar endpoint (UI:R / reflected XSS), so it is not fully hands-off - success depends on victim interaction. The attacker needs no authentication (PR:N) and the site must be running VikRentCar at version 1.4.8 or earlier. The specific plugin parameter or endpoint that reflects unsanitized input is not described in the available sources. Being reflected rather than stored, the payload is not persisted and each victim must be individually enticed, which limits realistic impact.

Impact

This is a reflected cross-site scripting flaw (CWE-79) in the VikRentCar WordPress plugin (through 1.4.8), reported by Patchstack and assigned a 7.1 CVSS. The supplied vector (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L) describes a network-reachable, low-complexity, unauthenticated (PR:N) attack that nonetheless requires user interaction (UI:R) - characteristic of reflected XSS where a victim must open an attacker-crafted link, so it is not self-propagating or automatable. No EPSS score, SSVC automatable/technical-impact values, or KEV listing are present in the input; it is not on CISA KEV and no verified exploit code is referenced, so there is no confirmed active exploitation. The only priority signal is the vuln.today 'this_week' decision label, which aligns with a medium-urgency reflected XSS rather than an emergency. Net assessment: a genuine but interaction-dependent web vulnerability - real enough to patch promptly, but the reliance on tricking a user and the absence of exploitation/EPSS evidence place it below mass-exploited, unauthenticated-RCE-class issues. The reflected (not stored) nature further limits blast radius to individually targeted victims.

Exploit ScenarioDerived

An attacker crafts a URL pointing at a vulnerable VikRentCar endpoint with a malicious script payload in a reflected parameter and delivers it to a victim (for example a site administrator or booking user) via email or a link. When the victim opens the link, the unsanitized input is reflected into the generated page and executes in their browser session, potentially stealing session data or performing actions as that user. No verified public exploit code is referenced in the available sources.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 23, 2026

Reflected cross-site scripting in the VikRentCar WordPress plugin (all versions through 1.4.8) lets a remote attacker run script in a victim's browser by luring them to a crafted link that reflects unsanitized input back into a page generated by the plugin. CVSS 3.1 rates it 7.1 (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L); the scope change reflects that the injected script executes in the context of the hosting WordPress site rather than the vulnerable component alone. No confirmed active exploitation (not in CISA KEV) and no public exploit code were identified at time of analysis; Patchstack reported the issue and the vuln.today decision feed places it at 'this_week' priority.

RemediationAI

No vendor-released fixed version is identified in the provided data; the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/vikrentcar/vulnerability/wordpress-vikrentcar-plugin-1-4-8-cross-site-scripting-xss-vulnerability-2) is the record to monitor for a patched VikRentCar release, and moving the plugin to any version published above 1.4.8 once it exists is the complete fix. Because the vulnerable parameter or endpoint is not identified in the available sources, no targeted virtual-patch or WAF signature can be derived from this intelligence, and the data lists no vendor workaround. As a compensating measure where updating is not yet possible, XSS inspection/filtering at a reverse proxy or WAF can reduce the likelihood of reflected payloads reaching users, at the cost of false positives on legitimate request parameters; hardening the plugin endpoint cannot be scoped precisely until the reflecting parameter is documented.

Affected VersionsENISA

VikRentCar 0 ≤1.4.8

Affected Packages

euvd vikrentcar 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

The issue is CWE-79 (Improper Neutralization of Input During Web Page Generation) in a PHP-based WordPress plugin, where request data echoed into the HTML response is not encoded/escaped, allowing script injection through a crafted URL. It is a reflected variant: the payload is not persisted in the database, so each victim must be individually enticed into following a malicious link, and the script runs in the origin of the WordPress site, which is why the assessed vector carries S:C with low C/I/A. The affected-product CPE is cpe:2.3:a:e4jvikwp:vikrentcar:*:*:*:*:*:*:*:* with the description bounding affected releases at 1.4.8 and earlier; the specific plugin parameter or endpoint that reflects the unsanitized input is not described in the available sources, so the exact request shape cannot be reproduced from this intelligence alone. Authentication is not required of the attacker (PR:N), and the assessment vector removes the A:L component present in the reported 7.1 score, reflecting the absence of evidence for an availability impact.

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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 6.1 MEDIUM

Unauthenticated reflected XSS over the network (PR:N, AV:N, AC:L) but requires victim to click a crafted link (UI:R); script runs in the victim's browser crossing a trust boundary (S:C) with limited C/I and no availability impact.

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

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low

DescriptionCVE.org

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in e4jvikwp VikRentCar vikrentcar allows Reflected XSS.This issue affects VikRentCar: from n/a through 1.4.8.

Executive ViewAI

Why It Matters

A high-severity reflected cross-site scripting flaw in the VikRentCar WordPress plugin (versions through 1.4.8) enables remote attackers to inject malicious scripts into a victim's browser via a crafted link. This puts site visitors and administrators at risk of session hijacking, credential theft, or redirection to malicious sites, potentially damaging customer trust and exposing sensitive data. Leadership should prioritize remediation given the plugin's public-facing nature and the absence of a vendor patch.

Business Impact: High
Compensating Controls

Deploy WAF rules to detect and block reflected XSS patterns targeting the plugin; enforce strict output encoding and input validation where possible; restrict administrative access to trusted networks; conduct user awareness training on phishing links; consider temporarily disabling the plugin until a patch is available.

Threat Intelligence Overview

EPSS Score
0.1%
Top 96% exploitable
Prevalence
Low
niche car-rental booking plugin for WordPress, limited deployment
Social Media
1
Sightings
Data Quality
7 sources
Confidence: High

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 HIGH
CISA KEV No
Public POC No
EPSS 0.1%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
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
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact
High
Technical Impact
Partial

Priority Score

36
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +36
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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