PatchTheCVECVE-2023-0423: The WordPress Amazon S3 Plugin WordPress plugin before 1.6 does not sanitise and escape a parameter before out
CVE-2023-0423 is a medium-severity flaw (CVSS 4.8) affecting wordpress amazon s3. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
The WordPress Amazon S3 Plugin WordPress plugin before 1.6 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin
Why this priority
- Public exploit reference
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 4.8 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | High |
| User interaction | Required |
| EPSS exploit chance | 0.4% (top 62%) |
| CISA exploited list | No |
| Published | 2023-04-10 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2023-0423?
wordpress amazon s3: upgrade to 1.6. Exact commands for each OS are on this page.
Is CVE-2023-0423 being exploited?
CVE-2023-0423 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2023-0423 affect?
CVE-2023-0423 affects wordpress amazon s3. Severity is medium (CVSS 4.8). The WordPress Amazon S3 Plugin WordPress plugin before 1.6 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as
How urgent is CVE-2023-0423?
Priority 36/100. Public exploit reference; On your watchlist