Security readout for executives and security teams
Plain-English summary
A WordPress site using Ultimate Product Catalog 5.8.2 can store attacker-supplied script content in a product price field. When a product is viewed, that script may run in the visitor’s browser. This is not listed as KEV, but a public exploit reference exists.
Executive priority
Prioritize affected public WordPress sites that allow multiple authenticated contributors or product managers. Treat this as a near-term hygiene and access-control issue, not an emergency unless suspicious content or activity is found.
Technical view
CVE-2021-47924 is stored cross-site scripting in Etoilewebdesign Ultimate Product Catalog 5.8.2. The supplied CVSS 3.1 score is 6.4: network-reachable, low complexity, low privileges, no user interaction, changed scope, and low confidentiality/integrity impact.
Likely exposure
Exposure is likely limited to WordPress deployments running Ultimate Product Catalog version 5.8.2 where an authenticated user can submit or modify product data.
Exploitation context
The bundle includes an ExploitDB reference, so public exploit information exists. The CVE is not marked KEV, and the provided sources do not confirm active exploitation.
Researcher notes
The evidence supports stored XSS in the price field for version 5.8.2 only. No fix version is named in the bundle. Do not assume broader version impact without vendor or advisory confirmation.
Mitigation direction
- Identify any WordPress sites running Ultimate Product Catalog 5.8.2.
- Check vendor and WordPress plugin guidance for a fixed or recommended version.
- Restrict product-management access to trusted authenticated users only.
- Review existing product price content for unexpected markup or script content.
- Disable the plugin if exposure cannot be safely reduced.
Validation and detection
- Confirm the installed Ultimate Product Catalog plugin version on each WordPress site.
- Review which authenticated users can create or edit product data.
- Inspect product records, especially price fields, for unexpected HTML or script content.
- Check WordPress logs for unusual authenticated product changes.
- Track vendor, CVE, and VulnCheck references for remediation updates.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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-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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-47924 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- 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
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.
SSVC decision data
CVSS vector scores
2 official scoresWe 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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N3.12.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N——VulnCheckVulnerability scoring details
Base CVSS 4.0 score
5.1MediumVector: 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
Base CVSS 3.1 score
6.4MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-50534CVE reference, VulnCheck · exploit
- Official Product HomepageCVE reference, VulnCheck · product
- Product ReferenceCVE reference, VulnCheck · product
- VulnCheck Advisory: WordPress Plugin Ultimate Product Catalog 5.8.2 Stored XSS via priceCVE reference, VulnCheck · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.