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CVE Record

CVE-2020-36722: Visual Composer <= 26.0 - Multiple Cross-Site Scripting

The Visual Composer plugin for WordPress is vulnerable to Cross-Site Scripting in versions up to, and including, 26.0 due to insufficient input sanitization and output escaping. This makes it possible for attackers to inject arbitrary web scripts that execute in a victim's browser.

MediumCVSS 5.5Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

Older Visual Composer Website Builder versions for WordPress can allow a highly privileged attacker to place script content that runs in another user's browser. The main business risk is account/session abuse or content manipulation inside WordPress, not direct server takeover.

Executive priority

Treat this as a moderate-priority WordPress hygiene issue. It is not described as actively exploited in the provided evidence, but exposed privileged WordPress accounts could turn it into browser-based compromise or content tampering.

Technical view

CVE-2020-36722 is a CWE-79 cross-site scripting issue in Visual Composer Website Builder through version 26.0. The reported cause is insufficient input sanitization and output escaping. CVSS 3.1 is 5.5, with network access, low complexity, high privileges required, changed scope, and low confidentiality and integrity impact.

Likely exposure

Exposure is most likely on WordPress sites running Visual Composer Website Builder version 26.0 or earlier, especially where multiple administrators or privileged content editors have access.

Exploitation context

The provided sources do not show CISA KEV listing or confirmed active exploitation. The CVSS vector indicates exploitation requires high privileges, but no user interaction is required once the attacker has that access.

Researcher notes

Evidence is limited to public vulnerability records and references. The bundle identifies affected versions through 26.0 and the XSS class, but does not provide exploit details or a precise patched version. Avoid assuming unauthenticated exposure because CVSS lists high privileges required.

Mitigation direction

  • Inventory WordPress sites using Visual Composer Website Builder.
  • Replace versions 26.0 or earlier with a current vendor-supported release.
  • Check vendor, WPScan, Wordfence, and plugin guidance for exact fixed-version information.
  • Limit administrative and high-privilege editor access to trusted users.
  • Review WordPress accounts for unnecessary elevated privileges.

Validation and detection

  • Confirm installed Visual Composer Website Builder versions across all WordPress sites.
  • Flag any installation at version 26.0 or earlier for remediation.
  • Review plugin change history or vendor advisory for the fixed release line.
  • Check WordPress audit logs for suspicious privileged content changes.
  • Verify no untrusted accounts hold administrator or equivalent roles.
Prepared
Confidence
medium
Sources
6

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-2020-36722 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
5.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:H/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
5Source 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
5.5CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N2.32.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

5.5Medium
CVSS 3.1 vector shape for CVE-2020-36722Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:H/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
visualcomposerVisual Composer Website Builder0unaffected
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.