CVE-2023-23752
An issue was discovered in Joomla! 4.0.0 through 4.2.7. An improper access check allows unauthorized access to webservice endpoints.
- CVSS
- 5.3Mediumscored by CISA
- Exploited in the wild
- Yes, in CISA KEV since 8 Jan 2024CISA deadline for US federal agencies: 29 Jan 2024public exploit code
- EPSS
- 99.8%chance of exploitation in the next 30 daystop 0.1% of scored CVEsFIRST score of 11 Nov 2026
- Fix
- Fixed in 4.2.8per the vendor
- Published
- 16 Feb 2023analysed here 12 Nov 2026
Do first. Upgrade to a fixed release: 4.2.8.
Summary
Triage
- Exploitable
- At runtime
- Attack vector
- network
- Weakness
- CWE-284 Common Weakness
The summary, impact and action text on this page are written by our AI analysis pipeline, or taken from the NVD description when a CVE was imported from NVD. They are not the vendor's wording: check them against the sources. A longer AI executive summary and technical analysis are generated for signed-in accounts on the Max plan.
Affected products
| Product | Affected versions | Vendor says fixed in |
|---|---|---|
| joomlafrom the Bitnami advisory, via OSV | >= 4.0.0 and < 4.2.8Vendor says fixed in: 4.2.8 | |
| Joomla! Project Joomla! CMS | 4.0.0-4.2.7Vendor says fixed in: not stated |
As published in the CVE Program record, and, for products that ship the affected component, in the advisory named beside them. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.
Products named in our analysis
- joomla:joomla\!
Fix and mitigation
WAF and other mitigations
Can a WAF block it? No. The vulnerability allows unauthorized access to webservice endpoints due to improper access checks, meaning the malicious request looks like a normal request without special injection or unusual syntax that a WAF could reliably detect.
Also consider: patch
Based on an AI reading of the CVE description, and no vendor rule found yet. We check Cloudflare, AWS, Google Cloud Armor and Azure; for Akamai, Imperva, Fastly, F5, ask your vendor.
Remediation steps (AI-written)
Step-by-step remediation is generated for accounts on the Max plan, for CVEs that match a technology in their stack. Add this technology to your stack to see the fix checklist.
Exploitation evidence
- CISA KEV catalog
- Listed since 8 Jan 2024.
- CISA due date
- 29 Jan 2024, the remediation deadline for US federal agencies
- CISA required action
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- Public exploit code
- Yes: 1 on Exploit-DB · 1 Metasploit module · 49 GitHub proofs of concept · 1 Nuclei template
- CISA SSVC
- exploitation active, automatable yes, technical impact partialAssessed by CISA 24 Jul 2024 (SSVC 2.0.3). Exploitation is none, poc (public proof of concept) or active.
Exploit-DB
- Joomla! v4.2.8 - Unauthenticated information disclosurewebapps, 8 Apr 2023, verified by Exploit-DB
Metasploit
- auxiliary/scanner/http/joomla_api_improper_access_checksauxiliary, rank normal
Nuclei
- Joomla! Webservice - Password Disclosuredetection template, medium
GitHub proofs of concept
- Acceis/exploit-CVE-2023-2375295 stars
- Ap0dexMe0/CVE-2023-2375236 stars
- z3n70/CVE-2023-2375219 stars
- keyuan15/CVE-2023-2375213 stars
and 45 more repositories
Listed so you can judge urgency, not as a recommendation to run anything. GitHub “proofs of concept” are unvetted: some are fake or carry malware. Exploit-DB marks the entries its staff verified.
Timeline
- 16 Feb 2023Published
- 18 Feb 2023First public exploit or proof of concept1 day later
- 8 Jan 2024Added to CISA KEV (exploited in the wild)324 days (about 11 months) later
- 29 Jan 2024CISA remediation due date (US federal agencies)21 days later
- 24 Jul 2024CISA SSVC assessment: exploitation active178 days (about 6 months) later
- 26 Feb 2026CVE record last updated581 days (about 2 years) later
- 12 Nov 2026Analysed by vulneraibility.com259 days (about 9 months) later
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
| Metric | Value | What it means |
|---|---|---|
| Attack vector | NetworkReachable over the internet or any routable network. | Reachable over the internet or any routable network. |
| Attack complexity | LowRepeatable attack, no special conditions. | Repeatable attack, no special conditions. |
| Privileges required | NoneThe attacker needs no prior access. | The attacker needs no prior access. |
| User interaction | NoneNo victim action needed. | No victim action needed. |
| Scope | UnchangedImpact stays within the vulnerable component. | Impact stays within the vulnerable component. |
| Confidentiality | LowPartial data disclosure. | Partial data disclosure. |
| Integrity | NoneNo unauthorised modification. | No unauthorised modification. |
| Availability | NoneThe service stays up. | The service stays up. |
Common questions
Is CVE-2023-23752 being exploited?
Yes. CVE-2023-23752 appears in CISA's Known Exploited Vulnerabilities catalog, which means exploitation in the wild has been confirmed and reported. Treat it as active rather than theoretical, and patch it ahead of higher-scoring vulnerabilities that carry no exploitation evidence.
How severe is CVE-2023-23752?
CVE-2023-23752 is rated Medium with a CVSS score of 5.3. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2023-23752?
Yes. A fix has been recorded for CVE-2023-23752. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2023-23752 affect?
CVE-2023-23752 affects joomla:joomla\!. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
References
2 references in the CVE record, grouped by the tags the record gives them.
Advisories (1)
- developer.joomla.org /security-centre/894-20230201-core-improper-access-check-in-webservice-endpoints
Other links (1)
- cisa.gov /known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-23752
Where the data on this page comes from
- CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
- NVD: CVSS and CPE data
- CISA KEV catalog: exploitation, date added, due date
- CISA Vulnrichment (ADP): SSVC decision points
- FIRST EPSS: exploit probability and percentile
- Exploit-DB: published exploits
- Metasploit Framework: exploit and scanner modules
- Nuclei templates: detection templates
- PoC-in-GitHub: GitHub repositories that claim a proof of concept
Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.
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