LiveActive security incident?Get immediate response
CVE Record

CVE-2025-23959: WordPress Good Old Gallery Plugin <= 2.1.2 - Reflected Cross Site Scripting (XSS) vulnerability

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Linus Lundahl Good Old Gallery good-old-gallery allows Reflected XSS.This issue affects Good Old Gallery: from n/a through <= 2.1.2.

HighCVSS 7.1Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2025-23959 is a reflected cross-site scripting issue in the WordPress Good Old Gallery plugin through version 2.1.2. An attacker could cause a user to open a crafted link and run script in that user’s browser. Sources do not show known active exploitation.

Executive priority

Treat this as a high-priority WordPress plugin exposure, especially for sites with privileged editors or administrators. It is less urgent than a no-click server compromise, but reflected XSS can support credential theft, session abuse, or content tampering when users are successfully targeted.

Technical view

The vulnerability is CWE-79 improper input neutralization during web page generation. CVSS 3.1 is 7.1 high: network reachable, low complexity, no privileges required, user interaction required, changed scope, and low confidentiality, integrity, and availability impact.

Likely exposure

Exposure is likely limited to WordPress sites running Good Old Gallery version 2.1.2 or earlier. The source bundle does not identify affected routes, parameters, installation counts, or whether later versions exist.

Exploitation context

The CVE is not listed as KEV in the provided bundle. Exploitation requires user interaction, typically a victim following a malicious link. No source in the bundle confirms exploitation in the wild or provides verified exploit availability.

Researcher notes

The provided data names Good Old Gallery through 2.1.2 but does not include vulnerable parameter details, proof-of-concept status, or a fixed version. One affected entry is sparse and inconsistent, so validate against the CVE record, Patchstack, and local plugin metadata.

Mitigation direction

  • Inventory WordPress sites for the Good Old Gallery plugin.
  • Confirm whether installed versions are 2.1.2 or earlier.
  • Check vendor, WordPress plugin, and Patchstack guidance for a fixed release.
  • If no supported fix exists, consider disabling the plugin after business review.
  • Prioritize protections for administrator and content editor sessions.

Validation and detection

  • Review WordPress plugin inventory and version data.
  • Check whether Good Old Gallery is active on public sites.
  • Look for vendor or Patchstack advisory updates after 2026-05-11.
  • Review web logs for unusual requests to plugin-controlled pages.
  • Confirm any compensating control is documented and time-bound.
Prepared
Confidence
medium
Sources
3

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-2025-23959 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
High
CVSS
7.1 (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:L

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
3Timeline events
1ADP providers
2Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: total

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
7.1CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L2.83.7Patchstack

Vulnerability scoring details

Base CVSS 3.1 score

7.1High
CVSS 3.1 vector shape for CVE-2025-23959Attack 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:L

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Linus LundahlGood Old Gallerygood-old-gallery, 0unaffected
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.