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CVE Record

CVE-2021-34656: 2Way VideoCalls and Random Chat - HTML5 Webcam Videochat <= 5.2.7 Reflected Cross-Site Scripting

The 2Way VideoCalls and Random Chat - HTML5 Webcam Videochat WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the `vws_notice` function found in the ~/inc/requirements.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 5.2.7.

MediumCVSS 6.1Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This is a reflected cross-site scripting issue in a WordPress video chat plugin. A public site using version 5.2.7 or earlier could expose users to malicious script execution if they open a crafted request. It is not listed in CISA KEV, and the provided sources do not show active exploitation.

Executive priority

Treat this as a moderate web application risk. It should be remediated through normal vulnerability management, with faster action for public WordPress sites or sites used by privileged administrators.

Technical view

CVE-2021-34656 affects the 2Way VideoCalls and Random Chat - HTML5 Webcam Videochat WordPress plugin through the vws_notice function in inc/requirements.php. The issue is CWE-79 reflected XSS, CVSS 3.1 score 6.1, network reachable, unauthenticated, low complexity, and requires user interaction.

Likely exposure

Exposure is likely limited to WordPress sites running the affected plugin at versions up to and including 5.2.7, especially public-facing sites where users or administrators may follow external links.

Exploitation context

The sources support reflected XSS, not confirmed real-world exploitation. Successful abuse requires a user to interact with a crafted request, but no authentication is required by the CVSS vector.

Researcher notes

The provided evidence identifies the vulnerable function and file path but does not name a fixed version or vendor mitigation. Avoid assuming exploit availability or patch status beyond the cited sources.

Mitigation direction

  • Inventory WordPress sites for the affected plugin and version.
  • Check vendor, WordPress.org, or Wordfence guidance for a fixed release.
  • Upgrade to a maintained fixed version if one is available.
  • Disable or remove the plugin if no safe update is available.
  • Prioritize public sites and administrator-facing workflows first.

Validation and detection

  • Confirm plugin presence and exact version on each WordPress site.
  • Review whether installed versions are 5.2.7 or earlier.
  • Inspect exposure of pages using the plugin functionality.
  • Review web logs for unusual requests involving the affected plugin path or parameters.
  • Document remediation status and residual business owner acceptance.
Prepared
Confidence
medium
Sources
4

Public sources used

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.

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cve · low confidence lookup

CVE-2021-34656 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
6.1 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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
3Source 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
6.1CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N2.82.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.1Medium
CVSS 3.1 vector shape for CVE-2021-34656Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
2Way VideoCalls and Random Chat - HTML5 Webcam Videochat2Way VideoCalls and Random Chat - HTML5 Webcam Videochat5.2.7Listed
Weakness

CWE details

CWE-79

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