CVE-2021-47929
WordPress Plugin Filterable Portfolio Gallery 1.0 Stored XSS
Description
Filterable Portfolio Gallery 1.0 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious JavaScript by entering payloads in the title field. Attackers can store JavaScript code like image tags with onerror handlers that execute when the gallery is previewed, affecting all users viewing the page.
INFO
Published Date :
May 10, 2026, 1:16 p.m.
Last Modified :
July 25, 2026, 10:10 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Sanitize all input for the title field.
- Implement output encoding for displayed titles.
- Update the Filterable Portfolio Gallery plugin.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-47929.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47929 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-47929
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-47929 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47929 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Translated by [email protected]
Jul. 25, 2026
Action Type Old Value New Value Changed Translation Title: plugin de WordPress Filterable Portfolio Gallery, Description: Filterable Portfolio Gallery 1.0 contiene una vulnerabilidad de cross-site scripting almacenado que permite a atacantes autenticados inyectar JavaScript malicioso al introducir payloads en el campo de título. Los atacantes pueden almacenar código JavaScript como etiquetas de imagen con manejadores onerror que se ejecutan cuando se previsualiza la galería, afectando a todos los usuarios que ven la página. Title: plugin de WordPress Filterable Portfolio Gallery, Description: Filterable Portfolio Gallery 1.0 contiene una vulnerabilidad de cross-site scripting almacenado que permite a atacantes autenticados inyectar JavaScript malicioso al introducir payloads en el campo de título. Los atacantes pueden almacenar código JavaScript como etiquetas de imagen con manejadores onerror que se ejecutan cuando se previsualiza la galería, afectando a todos los usuarios que ven la página. -
CVE Translated by [email protected]
Jul. 24, 2026
Action Type Old Value New Value Added Translation Title: plugin de WordPress Filterable Portfolio Gallery, Description: Filterable Portfolio Gallery 1.0 contiene una vulnerabilidad de cross-site scripting almacenado que permite a atacantes autenticados inyectar JavaScript malicioso al introducir payloads en el campo de título. Los atacantes pueden almacenar código JavaScript como etiquetas de imagen con manejadores onerror que se ejecutan cuando se previsualiza la galería, afectando a todos los usuarios que ven la página. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Filterable-Portfolio', 'product': 'Filterable Portfolio Gallery', 'versions': [{'status': 'affected', 'version': '1.0'}]}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2021-47929', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-05-11T15:14:54.278307Z'} -
New CVE Received by [email protected]
May. 10, 2026
Action Type Old Value New Value Added Description Filterable Portfolio Gallery 1.0 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious JavaScript by entering payloads in the title field. Attackers can store JavaScript code like image tags with onerror handlers that execute when the gallery is previewed, affecting all users viewing the page. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N Added CWE CWE-79 Added Reference http://www.filterable-portfolio.com/ Added Reference https://wordpress.org/plugins/fg-gallery/ Added Reference https://www.exploit-db.com/exploits/50458 Added Reference https://www.vulncheck.com/advisories/wordpress-plugin-filterable-portfolio-gallery-stored-xss