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CVE-2023-23752· NVD / CVE Program· CNA Joomla

[20230201] - Core - Improper access check in webservice endpoints

An issue was discovered in Joomla! 4.0.0 through 4.2.7. An improper access check allows unauthorized access to webservice endpoints.

MediumCVSS 5.3 · v3.1KEVWeaponized No fix recorded
Published
Feb 16, 2023
Updated
Jun 17, 2026
EPSS
99.8% · 100th percentile
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Action score

81

Now

Patch today or shut off access.

CVSS
21 / 40 · 5.3 / 10
CISA KEV
30 / 30 · Listed
EPSS
30 / 30 · 99.8%

CISA SSVC decision

Exploitation
active
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Actively exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on Jan 8, 2024. That signals real attacks, not theory.

Remediation deadline for government agencies: Jan 29, 2024.

Affected systems

VendorProduct
joomlajoomla\!

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • joomla joomla!4.0.0 and later · before 4.2.8

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Joomla). Independent of NVD's CPE analysis and usually ahead of it.

  • Joomla! Project Joomla! CMS

    • 4.0.0-4.2.7affected

Same product

joomla: all records

Other highest-scoring records for the same primary product.

  • CVE-2017-8917SQL injection vulnerability in Joomla! 3.7.x before 3.7.1 allows attackers to execute arbitrary SQL commands via unspecified vectors.
    69This week
  • CVE-2016-8869The register method in the UsersModelRegistration class in controllers/user.php in the Users component in Joomla! before 3.6.4 allows remote
    68This week
  • CVE-2015-7297SQL injection vulnerability in Joomla! 3.2 before 3.4.4 allows remote attackers to execute arbitrary SQL commands via unspecified vectors, a
    60This week
  • CVE-2015-8562Joomla! 1.5.x, 2.x, and 3.x before 3.4.6 allow remote attackers to conduct PHP object injection attacks and execute arbitrary PHP code via t
    59Plan
  • CVE-2015-7857SQL injection vulnerability in the getListQuery function in administrator/components/com_contenthistory/models/history.php in Joomla! 3.2 be
    58Plan
  • CVE-2016-8870The register method in the UsersModelRegistration class in controllers/user.php in the Users component in Joomla! before 3.6.4, when registr
    56Plan

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

  • Metasploit module ×1
  • Exploit-DB entry ×1
  • Nuclei detection template ×1
  • Proof-of-concept repository on GitHub ×47

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Exploit-DB entrywebapps2023-04-08
Metasploit moduleauxiliary/scanner/http/joomla_api_improper_access_checksJoomla API Improper Access Checksauxiliary2023-02-01
Nuclei detection templateNuclei template CVE-2023-23752 —
Proof-of-concept repository on GitHubstars:32023-02-18
Proof-of-concept repository on GitHubstars:42023-02-18
Proof-of-concept repository on GitHubstars:42023-02-20
Proof-of-concept repository on GitHubstars:02023-02-21
Proof-of-concept repository on GitHubstars:12023-02-23
Proof-of-concept repository on GitHubstars:32023-02-23
Proof-of-concept repository on GitHubstars:42023-02-23
Proof-of-concept repository on GitHubstars:182023-02-24
Proof-of-concept repository on GitHubstars:132023-03-01

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Metasploit-16 d
  2. Published
  3. First PoC+1 d
  4. CISA KEV+325 d
  5. TodaySep 29, 2026+1321 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
low · data can be read
Integrity
none
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
Low
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-284 · Improper Access Control

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records