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Strong Testimonials CVE-2026-114706

| EUVDEUVD-2026-112882 MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2026-10-29 Patchstack GHSA-mxfm-g8qj-phwg
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 low-privileged user
  2. Delivery
    Submit testimonial containing malicious script
  3. Exploit
    Payload stored in WordPress database
  4. Execution
    Administrator views stored testimonial
  5. Persist
    JavaScript executes in admin browser
  6. Impact
    Hijack session or perform admin actions

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 authenticated account with at least low-level privileges on the WordPress site capable of submitting testimonial content to the Strong Testimonials plugin (consistent with PR:L), plus subsequent user interaction (UI:R) - a victim such as an administrator must view the page rendering the stored, improperly neutralized input for the script to execute. The precise injectable field and the exact capability threshold are not detailed in the available sources. Limiting factors that reduce real-world risk: the need for a pre-existing authenticated (non-anonymous) account, the dependency on a victim viewing the stored content, and the requirement that the vulnerable plugin (version ≤3.3.15) be installed and active. There is no indication in the input that any non-default configuration is required.

Impact

This is a stored (persistent) cross-site scripting flaw (CWE-79) in the Strong Testimonials WordPress plugin, versions through 3.3.15, with a CVSS 3.1 base score of 6.5 (vector AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L). The signals point to a moderate, not emergency, priority. The vector indicates network reach and low attack complexity, but it is NOT unauthenticated: PR:L means the attacker needs at least a low-privileged authenticated account, and UI:R means a victim (typically an administrator or other user) must view the injected content for the payload to fire. The scope-change flag (S:C) reflects that the injected script executes in the victim's browser context rather than only the vulnerable component, which is standard for stored XSS. No EPSS probability was supplied in the input, there is no CISA KEV listing, and no verified public exploit code is present - only a Patchstack database advisory reference. The vuln.today decision label is 'this_month', consistent with a real but non-urgent issue rather than an actively exploited critical bug. Net: a genuine issue worth patching on a normal monthly cycle, not a drop-everything emergency, with the authentication and user-interaction requirements meaningfully limiting mass exploitation. Note the absence of an EPSS score in the input - exploitation probability could not be quantified from the data provided.

Exploit ScenarioDerived

A low-privileged authenticated user (for example a contributor-level account able to submit testimonial content) injects a malicious JavaScript payload into a testimonial field that the plugin fails to properly neutralize. The payload is stored and later rendered when an administrator or other user views the affected page, executing the attacker's script in that victim's browser session. No verified public exploit code is present in the input - only a Patchstack advisory reference - so exploitation would require an attacker to craft the payload themselves.

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 – Oct 29, 2026

Stored cross-site scripting in the WP Chill Strong Testimonials WordPress plugin, affecting all versions through 3.3.15, lets an authenticated low-privilege user submit testimonial content that is rendered without proper neutralization, so script executes in the browser of any user - including an administrator - who views the affected page. The assessed CVSS 3.1 base score is 6.5 (AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N), reflecting the need for a pre-existing account and for victim interaction, while the scope change means the injected script can act beyond the plugin's own component. No CISA KEV entry, public exploit reference or EPSS score was supplied in the available intelligence, so there is no public exploit identified at time of analysis; the vendor-facing reference is the Patchstack advisory for the 3.3.15 release.

RemediationAI

The supplied intelligence does not name a patched release, so the first step is to confirm the current fixed version in the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/strong-testimonials/vulnerability/wordpress-strong-testimonials-plugin-3-3-15-cross-site-scripting-xss-vulnerability) and upgrade the plugin from any version at or below 3.3.15 to that release; if no fixed version is listed yet, the practical compensating control is to deactivate Strong Testimonials until an update is available, accepting the loss of the testimonial display and submission functionality on the site. Because exploitation requires an authenticated account that can submit testimonial content plus a victim who views the stored entry (PR:L/UI:R), reducing the number of accounts holding contributor-level or higher capabilities and reviewing who may submit testimonials limits exposure, at the cost of restricting editorial workflow. Sites should also review existing stored testimonial submissions for injected markup before restoring normal use, since the payload persists in the database after patching.

Affected VersionsENISA

Strong Testimonials 0 ≤3.3.15

Affected Packages

euvd strong_testimonials 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 flaw is CWE-79, improper neutralization of input during web page generation, in a WordPress plugin that stores user-submitted testimonials and later renders them back into pages. Because testimonial content is persisted and subsequently output without adequate encoding or sanitization, the payload lives on the server rather than in a single request, which is what makes it stored (persistent) XSS. The CPE cpe:2.3:a:wp_chill:strong_testimonials:*:*:*:*:*:*:*:* and the EUVD version range both confirm the plugin itself is the affected component through 3.3.15, and exploitation presupposes that the plugin is installed and active on the target WordPress site. The CVSS vector AV:N/AC:L/PR:L/UI:R/S:C indicates a network-reachable attack that is straightforward to perform technically but requires an authenticated low-privileged account and a victim who loads the page rendering the stored input; the scope change reflects that the injected script runs in the context of the viewing user rather than the submitting one. The available sources do not identify the exact injectable field or the precise capability threshold needed to submit the content, so the trigger detail remains unconfirmed beyond the general submit-then-render path.

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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 5.4 MEDIUM

Authenticated content submitter needed (PR:L) and a victim must view the payload (UI:R); stored XSS crosses into the browser context (S:C) with low confidentiality/integrity impact and no availability impact.

3.1 AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:P/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
Low
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 WP Chill Strong Testimonials strong-testimonials allows Stored XSS.This issue affects Strong Testimonials: from n/a through 3.3.15.

Threat Intelligence Overview

EPSS Score
0.1%
Top 97% exploitable
Prevalence
Medium
popular WordPress testimonials plugin with large active-install base
Social Media
1
Sightings
Data Quality
5 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.

CVE-2020-8549 MEDIUM POC
6.1 Feb 03

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CVE-2024-3261 MEDIUM POC
4.8 Apr 24

The Strong Testimonials WordPress plugin before 3.1.12 does not validate and escape some of its Testimonial fields befor

CVE-2026-96650 HIGH
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Stored cross-site scripting in the Strong Testimonials WordPress plugin (all versions through 3.3.11) can let unauthenti

CVE-2026-107435 HIGH
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Stored cross-site scripting in the Strong Testimonials WordPress plugin through version 3.3.12 allows an attacker to pla

CVE-2026-97286 MEDIUM
6.5 Sep 30

Cross-site scripting in the Strong Testimonials WordPress plugin (versions through 3.3.11) lets an authenticated attacke

CVE-2026-3239 MEDIUM
6.4 Apr 08

Stored cross-site scripting in Strong Testimonials WordPress plugin up to version 3.2.21 allows authenticated contributo

CVE-2026-92622 MEDIUM
6.4 Sep 18

Authenticated attackers with contributor-level access can inject persistent JavaScript into WordPress sites running Stro

CVE-2026-109897 MEDIUM
5.4 Oct 15

Authenticated attackers holding only low-privilege WordPress accounts can abuse improperly enforced access controls in t

CVE-2023-26013 MEDIUM
5.4 Jun 16

Auth. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. No vendor pat

CVE-2024-47362 MEDIUM
4.3 Nov 01

Missing Authorization vulnerability in WP Chill Strong Testimonials strong-testimonials.1.16. Rated medium severity (CVS

CVE-2023-6491 MEDIUM
4.3 Jun 07

The Strong Testimonials plugin for WordPress is vulnerable to unauthorized modification of data due to an improper capab

CVE-2023-52123 MEDIUM
4.3 Jan 05

Cross-Site Request Forgery (CSRF) vulnerability in WPChill Strong Testimonials.1.10. Rated medium severity (CVSS 4.3), t

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