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CVE Record

CVE-2023-6801: RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator <= 4.3.2 - Authenticated (Author+) Stored Cross-Site Scripting

The RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 4.3.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level permissions 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-2023-6801 lets a logged-in WordPress user with Author-level access or higher store malicious scripts through Feedzy plugin admin settings. Those scripts can run later when someone views an affected page, potentially exposing session data or changing page behavior. It is medium severity because attacker login is required, but impact can cross user trust boundaries.

Executive priority

Prioritize remediation on WordPress sites with many content contributors, shared logins, or weaker account controls. This is not currently evidenced as exploited in KEV, but stored XSS can create business risk through admin trust abuse and visitor-side script execution.

Technical view

RSS Aggregator by Feedzy up to and including 4.3.2 has stored XSS from insufficient input sanitization and output escaping in admin settings. CVSS 3.1 is 6.4: network reachable, low complexity, low privileges, no user interaction, changed scope, low confidentiality and integrity impact, no availability impact.

Likely exposure

Exposure is limited to WordPress sites running Feedzy version 4.3.2 or older where untrusted or compromised Author-level accounts can access the vulnerable settings path.

Exploitation context

The source bundle does not show CISA KEV listing or active exploitation evidence. Exploitation requires authenticated Author-level or higher access, but stored XSS can affect later visitors to injected pages without further attacker interaction.

Researcher notes

Evidence identifies CWE-79 stored XSS in Feedzy admin settings and a WordPress.org Trac changeset reference. The bundle does not provide exploit details, active exploitation confirmation, or a complete remediation advisory, so validation should focus on version, role exposure, and vendor-confirmed fix status.

Mitigation direction

  • Update Feedzy to a release newer than 4.3.2 if vendor guidance confirms availability.
  • Check Wordfence and plugin vendor guidance for the fixed version and upgrade notes.
  • Restrict Author-level access to trusted users until remediation is confirmed.
  • Review WordPress accounts for unnecessary Author, Editor, or Administrator privileges.

Validation and detection

  • Inventory WordPress sites for the Feedzy RSS Aggregator plugin.
  • Confirm installed Feedzy versions are not 4.3.2 or older.
  • Review user roles for untrusted or stale Author-level accounts.
  • Check security logs for suspicious Feedzy settings changes or unexpected script content.
Prepared
Confidence
high
Sources
4

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-2023-6801 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
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
6.4CVSS 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-2023-6801Attack 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
themeisleRSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator0unaffected
Weakness

CWE details

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