Vulnerability · CVE-2016-20053
Redaxo CMS 5.2 contains a cross-site request forgery vulnerability that allows unauthenticated attackers to create administrative user accounts by tricking authenticat…
Published Apr 4, 2026 · catalog updated Jul 21, 2026 · the affected product
Check if you run it
No confirmed exploitation is on record for CVE-2016-20053. EPSS is 0.15%. Act only if a listed version of the affected product is installed.
Gaps on this record
- No plain product name is stored. The page cannot tell you which product to check.
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- Medium6.9
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.15%
- Remediation
- Advisory link
- Affected products
- cpe redaxo/redaxo
Redaxo CMS 5.2 contains a cross-site request forgery vulnerability that allows unauthenticated attackers to create administrative user accounts by tricking authenticated administrators into visiting malicious pages. Attackers can craft HTML forms targeting the users endpoint with hidden fields containing admin credentials and account parameters to add new administrator accounts without user consent.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe redaxo/redaxo5.2
How to fix CVE-2016-20053
Recommended remediation
A patch or advisory reference is linked. Open the original publisher for availability by product version.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2016-20053. EPSS is 0.15%. Act only if a listed version of the affected product is installed.
Which versions are affected?
Compare what you have installed with 5.2. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-352: Cross-Site Request Forgery (CSRF). EPSS 0.15%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Apr 4, 2026 · NIST NVD
Detected
Redaxo CMS 5.2 contains a cross-site request forgery vulnerability that allows unauthenticated attackers to create administrative user accounts by tricking authenticated administrators into visiting malicious pages. Attackers can craft HTML forms targeting the users endpoint with hidden fields containing admin credentials and account parameters to add new administrator accounts without user consen
Jul 21, 2026 · NIST NVD
Updated
Redaxo CMS 5.2 contains a cross-site request forgery vulnerability that allows unauthenticated attackers to create administrative user accounts by tricking authenticated administrators into visiting malicious pages. Attackers can craft HTML forms targeting the users endpoint with hidden fields containing admin credentials and account parameters to add new administrator accounts without user consen
Sources
- CVE.orgVulnerability recordCVE-2016-20053
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2016-20053
30-day exploitation probability 0.15%
first.org - NIST NVDVulnerability recordCVE-2016-20053
Redaxo CMS 5.2 contains a cross-site request forgery vulnerability that allows unauthenticated attackers to create administrative user accounts by tricking authenticated administrators into visiting malicious pages. Attackers can craft HTML forms targeting the users endpoint with
nvd.nist.gov
References
Freshness
Last verified in this catalog Oct 21, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.