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CVE Record

CVE-2021-24428: RSS for Yandex Turbo <= 1.30 - Authenticated Stored XSS

The RSS for Yandex Turbo WordPress plugin through 1.30 does not sanitise or escape some of its settings before saving and outputing them in the admin dashboard, leading to an Authenticated Stored Cross-Site Scripting issue even when the unfiltered_html capability is disallowed.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2021-24428 affects the RSS for Yandex Turbo WordPress plugin through version 1.30. Some plugin settings are stored and later shown in the admin dashboard without proper sanitization or escaping, allowing authenticated stored cross-site scripting. This could let malicious script run in an administrator’s browser.

Executive priority

Prioritize remediation on WordPress sites where non-core administrators or content staff can change plugin settings. Business urgency is moderate because exploitation requires authentication, but successful abuse could affect privileged admin sessions.

Technical view

The issue is CWE-79 in RSS for Yandex Turbo. Authenticated input in certain settings is saved and rendered in the WordPress admin dashboard without adequate sanitization or output escaping, including where unfiltered_html is disallowed. The supplied sources do not provide CVSS scoring or a named fixed version.

Likely exposure

Exposure is limited to WordPress sites using RSS for Yandex Turbo through version 1.30. Practical risk depends on whether authenticated users can access and modify the affected plugin settings.

Exploitation context

The source bundle describes authenticated stored XSS, but does not cite public exploitation or inclusion in CISA KEV. Treat this as a credible post-authentication admin-impact issue, not confirmed active exploitation.

Researcher notes

Evidence is limited to the CVE description and referenced advisories. No CVSS vector, patch version, or exploitation evidence is included in the supplied bundle. Avoid assuming exploit activity or a specific fixed version without vendor confirmation.

Mitigation direction

  • Inventory WordPress sites for RSS for Yandex Turbo version 1.30 or earlier.
  • Check vendor or WordPress plugin guidance for a fixed maintained release.
  • Restrict plugin settings access to trusted administrators only.
  • Disable or remove the plugin if it is not business-critical.
  • Review affected settings for unexpected script content.

Validation and detection

  • Confirm installed RSS for Yandex Turbo versions across WordPress assets.
  • Identify accounts permitted to modify the plugin settings.
  • Check whether affected settings render unsanitized content in admin pages.
  • Review admin audit logs for recent plugin setting changes.
  • Verify remediation by confirming the vulnerable plugin version is no longer present.
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-2021-24428 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
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.

0CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
UnknownRSS for Yandex Turbo1.30Listed
Weakness

CWE details

CWE-79

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.

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