Security readout for executives and security teams
Plain-English summary
Joomla had a URL validation flaw where the CMS could incorrectly decide whether a redirect target was internal. For leaders, the main concern is trust abuse: affected sites may help attackers misdirect users. The public bundle does not provide CVSS, confirmed exploitation, or detailed impact beyond redirect validation.
Executive priority
Address during normal vulnerability remediation, with faster action for public or customer-facing Joomla sites. The issue can affect user trust, but current source evidence lacks CVSS, known exploitation, or severe downstream impact.
Technical view
CVE-2022-23798 affects Joomla CMS 2.5.0 through 3.10.6 and 4.0.0 through 4.1.0. The issue is inadequate validation of internal URLs, causing incorrect classification of redirect URLs as internal or not. Source evidence does not include exploit mechanics, CVSS scoring, or confirmed remediation versions.
Likely exposure
Exposure is most likely for public Joomla websites running the affected 2.5.x-3.10.6 or 4.0.x-4.1.0 ranges. Internally hosted Joomla instances can also be exposed if users follow links or redirects through them.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. Treat exploitation status as unconfirmed. The described weakness suggests potential redirect trust abuse, but the bundle does not prove phishing use, authentication impact, or privilege escalation.
Researcher notes
Evidence is limited to the CVE description and Joomla advisory reference. Avoid claiming open redirect exploitation beyond the stated internal URL validation failure. Useful follow-up is vendor advisory review for fixed versions and any Joomla-specific operational guidance.
Mitigation direction
- Inventory Joomla instances and identify versions in affected ranges.
- Review the Joomla vendor advisory for supported fixed versions.
- Upgrade affected sites outside the listed vulnerable ranges.
- Prioritize internet-facing Joomla sites and high-trust portals first.
- Review redirect-related configuration and custom extensions after upgrading.
Validation and detection
- Confirm the exact Joomla version for each site.
- Compare deployed versions against the affected ranges in the CVE record.
- Check vendor advisory status before approving remediation closure.
- Verify redirects behave as intended after update or mitigation.
- Document whether each Joomla instance is public-facing or internal.
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.
CVE-2022-23798 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://developer.joomla.org/security-centre/875-20220306-core-inadequate-validation-of-internal-urls.htmlCVE reference · x_refsource_MISC, vendor-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.