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CVE Record

CVE-2026-1095: Canto Testimonials <= 1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'fx' Shortcode Attribute

The Canto Testimonials plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'fx' shortcode attribute in all versions up to, and including, 1.0 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.

MediumCVSS 6.4Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2026-1095 affects the Canto Testimonials WordPress plugin through version 1.0. A logged-in user with Contributor-level access or higher could store malicious script through a shortcode attribute. That script may run when others view the affected page. This is mainly a website integrity and account/session risk, not a server takeover vulnerability based on available sources.

Executive priority

Treat this as a moderate website security issue. Prioritize sites with external contributors or shared publishing access. It is less urgent than unauthenticated remote code execution, but it can damage trust, expose users to malicious browser-side actions, and affect administrator sessions.

Technical view

The issue is stored cross-site scripting in the plugin’s 'fx' shortcode attribute, caused by insufficient input sanitization and output escaping. The CVSS 3.1 score is 6.4 with low privileges required, network attack vector, scope changed, and low confidentiality/integrity impact. Sources identify CWE-79 and versions up to and including 1.0 as vulnerable.

Likely exposure

Exposure is limited to WordPress sites using Canto Testimonials through version 1.0 where untrusted or compromised users have Contributor or higher access. Public exploitation is not indicated in the provided sources, and the CVE is not listed as KEV.

Exploitation context

An attacker needs authenticated WordPress access at Contributor level or above. The risk increases on sites with many content contributors, weak account governance, or compromised author accounts. Successful exploitation affects visitors or administrators who view the injected content.

Researcher notes

Available evidence identifies the vulnerable sink as the 'fx' shortcode attribute around the referenced plugin code. The source bundle does not name a fixed version or patch. The affected-version metadata appears inconsistent, so validate against Wordfence, CVE data, and the WordPress plugin repository before closing exposure.

Mitigation direction

  • Check whether Canto Testimonials is installed and identify its version.
  • Review vendor or WordPress plugin guidance for an updated or fixed release.
  • Restrict Contributor and higher roles to trusted users only.
  • Remove or disable the plugin if no safe update is available.
  • Review existing testimonial shortcodes and pages for suspicious attributes or content.

Validation and detection

  • Inventory WordPress sites for the Canto Testimonials plugin.
  • Confirm whether installed versions are 1.0 or earlier.
  • Review users with Contributor, Author, Editor, or Administrator roles.
  • Inspect pages or posts using the Canto Testimonials shortcode.
  • Monitor WordPress security logs for suspicious content changes.
Prepared
Confidence
high
Sources
5

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-79: User-session and phishing behavior lookup

Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-1095 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.4 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
6.4CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N3.12.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.4Medium
CVSS 3.1 vector shape for CVE-2026-1095Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
cantothemesCanto Testimonials0unaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-79 · source CWE mapping

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.