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CVE Record

CVE-2023-6747: FooGallery Premium <= 2.3.3 - Authenticated (Contributor+) Stored Cross-Site Scripting

The Best WordPress Gallery Plugin – FooGallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the custom attributes in all versions up to, and including, 2.3.3 due to insufficient input sanitization and output escaping. This makes it possible for contributors and above to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

MediumCVSS 6.4Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2023-6747 is a stored cross-site scripting issue in FooGallery Premium for WordPress up to version 2.3.3. A logged-in Contributor-level user or higher could save malicious script through custom attributes, causing it to run when someone views the affected page.

Executive priority

Treat this as a moderate website integrity risk. It is not a perimeter compromise and no active exploitation is cited, but stored XSS can affect administrators or visitors and should be remediated during normal vulnerability patch cycles.

Technical view

The issue is CWE-79 caused by insufficient input sanitization and output escaping of custom attributes. It is rated CVSS 6.4, with low privileges required, low attack complexity, changed scope, and limited confidentiality and integrity impact.

Likely exposure

Exposure is most likely on WordPress sites running FooGallery Premium version 2.3.3 or earlier, especially where Contributor or higher accounts are available to untrusted users. The provided metadata does not establish exposure for unrelated plugins beyond the named FooGallery products.

Exploitation context

The source bundle does not cite active exploitation, and the CVE is not listed as KEV. Exploitation requires an authenticated Contributor-level or higher account and affects users who access a page containing injected gallery content.

Researcher notes

The key uncertainty is remediation detail: the bundle identifies versions through 2.3.3 as vulnerable and references later plugin code, but does not explicitly name a fixed release. Validate against vendor release notes before closing remediation.

Mitigation direction

  • Inventory WordPress sites using FooGallery Premium.
  • Identify installations running version 2.3.3 or earlier.
  • Update beyond the affected version range when vendor guidance supports it.
  • Review vendor and Wordfence guidance for confirmed remediation details.
  • Restrict Contributor-level access to trusted users only.
  • Review recent gallery custom attributes for suspicious content.

Validation and detection

  • Check installed FooGallery edition and version in WordPress.
  • Confirm whether Contributor-level users can edit affected gallery attributes.
  • Review rendered gallery pages for unexpected script-bearing attributes.
  • Verify updated versions sanitize input and escape custom attribute output.
  • Check WordPress user audit logs for recent gallery changes.
Prepared
Confidence
high
Sources
6

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-2023-6747 mapping review

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

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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
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
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-2023-6747Attack 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

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
https://fooplugins.comFooGallery Premium0unaffected
foopluginsGallery by FooGallery0unaffected
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.

Open CWE intelligenceSame-CWE CVEs