PatchTheCVECVE-2023-0033: The PDF Viewer WordPress plugin before 1.0.0 does not validate and escape one of its shortcode attributes, whi
CVE-2023-0033 is a medium-severity flaw (CVSS 5.4) affecting pdf viewer. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
The PDF Viewer WordPress plugin before 1.0.0 does not validate and escape one of its shortcode attributes, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attack.
Why this priority
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.4 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | Required |
| EPSS exploit chance | 0.5% (top 59%) |
| CISA exploited list | No |
| Published | 2023-01-30 |
| 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-2023-0033?
pdf viewer: upgrade to 1.0.0. Exact commands for each OS are on this page.
Is CVE-2023-0033 being exploited?
CVE-2023-0033 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-2023-0033 affect?
CVE-2023-0033 affects pdf viewer. Severity is medium (CVSS 5.4). The PDF Viewer WordPress plugin before 1.0.0 does not validate and escape one of its shortcode attributes, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attack.
How urgent is CVE-2023-0033?
Priority 34/100. Public exploit reference