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CVE Record

CVE-2021-47922: WordPress Plugin Slider by Soliloquy 2.6.2 Stored XSS

Slider by Soliloquy 2.6.2 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts through the title parameter. Attackers can add JavaScript payloads in the title field when creating or editing sliders, which executes in the browsers of users viewing the slider on both administrative and frontend pages.

MediumCVSS 6.4Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

A WordPress site using Slider by Soliloquy 2.6.2 can store attacker-supplied JavaScript in a slider title. A logged-in attacker with slider editing access could make the script run for administrators or visitors viewing the slider, creating account and content-integrity risk.

Executive priority

Prioritize remediation for customer-facing or high-traffic WordPress sites, and for environments where marketing or editor accounts can manage sliders. The likely impact is session theft, unauthorized actions, or visitor trust damage rather than server takeover.

Technical view

CVE-2021-47922 is stored XSS in the title parameter of Slider by Soliloquy 2.6.2. The CVSS 3.1 vector is AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N. It requires authenticated access and can execute on administrative and frontend slider views.

Likely exposure

Exposure is limited to WordPress installations running Slider by Soliloquy 2.6.2, especially where non-administrators can create or edit sliders. Public rendering of affected sliders increases business impact because injected script may reach site visitors.

Exploitation context

The source bundle includes an ExploitDB reference, but KEV is false and the provided sources do not state active exploitation. Treat the issue as publicly documented and potentially reproducible, not confirmed exploited in the wild.

Researcher notes

Evidence supports stored XSS in a single affected version and parameter. Do not assume unauthenticated exploitation, broader versions, or a known fixed release from this bundle. The key operational question is who can edit sliders and where affected sliders render.

Mitigation direction

  • Inventory WordPress sites for Slider by Soliloquy version 2.6.2.
  • Check Soliloquy and WordPress plugin guidance for a fixed version or vendor mitigation.
  • Restrict slider creation and editing to trusted administrators until remediated.
  • Disable affected slider content if vendor remediation is unavailable or delayed.
  • Review affected pages for suspicious slider titles or unexpected scripts.

Validation and detection

  • Confirm installed plugin name and version on each WordPress site.
  • Review roles that can create or edit Soliloquy sliders.
  • Inspect existing slider titles for unexpected script-like content.
  • Verify frontend and admin slider pages after applying vendor guidance.
  • Check web and WordPress audit logs for recent slider edits.
Prepared
Confidence
medium
Sources
6

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-2021-47922 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.

2CVSS vectors
3Timeline events
1ADP providers
5Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: noTechnical Impact: partial

CVSS vector scores

2 official scores

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:N3.12.7VulnCheck
5.1CVSS 4.0MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:NVulnCheck

Vulnerability scoring details

Base CVSS 4.0 score

5.1Medium
CVSS 4.0 vector shape for CVE-2021-47922Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
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

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
SoliloquywpSlider by Soliloquy2.6.2Listed
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.