CVE-2021-26030 (GCVE-0-2021-26030)

Vulnerability from cvelistv5 – Published: 2021-04-14 17:34 – Updated: 2026-02-25 05:04
VLAI
Title
[20210401] - Core - Escape xss in logo parameter error pages
Summary
An issue was discovered in Joomla! 3.0.0 through 3.9.25. Inadequate escaping allowed XSS attacks using the logo parameter of the default templates on error page
Severity
6.1 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CWE
  • XSS
Assigner
References
URL Tags
https://developer.joomla.org/security-centre/850-… x_refsource_MISCvendor-advisory
Impacted products
Vendor Product Version
Joomla! Project Joomla! CMS Affected: 3.0.0-3.9.25
Create a notification for this product.
Date Public
2021-04-13 00:00
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.