PatchTheCVECVE-2009-4900: pixelpost 1.7.1 has XSS
37
Routine
MEDIUM 6.1DOWNGRADE
CVE-2009-4900 is a medium-severity flaw (CVSS 6.1) affecting pixelpost. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
pixelpost 1.7.1 has XSS
Why this priority
- No elevated risk signals yet
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 6.1 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 1.0% (top 38%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2019-10-28 |
| Last modified | 2026-06-16 |
Publisher (CNA): Red Hat, Inc. · Vendor: pixelpost
Last updated 2026-06-16 · 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
pixelpost pixelpost DOWNGRADE
Affected: 1.7.1-5
Fixed in: no fixed release known
Safe to downgrade to: a release before 1.7.1-5
1. Check installed version
apt-cache policy pixelpost || rpm -q pixelpost || pixelpost --version
2. No fixed release: DOWNGRADE to a release before 1.7.1-5 (Debian / Ubuntu)
apt-cache madison pixelpost
sudo apt install pixelpost=<VERSION_BEFORE_1.7.1-5>
sudo apt-mark hold pixelpost
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list pixelpost
sudo dnf downgrade pixelpost-<VERSION_BEFORE_1.7.1-5>
sudo dnf versionlock add pixelpost
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
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-2009-4900?
pixelpost: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2009-4900 being exploited?
CVE-2009-4900 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-2009-4900 affect?
CVE-2009-4900 affects pixelpost. Severity is medium (CVSS 6.1). pixelpost 1.7.1 has XSS
How urgent is CVE-2009-4900?
Priority 37/100. No elevated risk signals yet.
Related CVEs
- CVE-2018-0606 HIGH 7.2 DOWNGRADE SQL injection vulnerability in the Pixelpost v1.7.3 and earlier allows remote authenticated attackers to execu
- CVE-2018-0605 MEDIUM 6.1 UPGRADE Cross-site scripting vulnerability in Pixelpost v1.7.3 and earlier allows remote attackers to inject arbitrary
- CVE-2018-0604 HIGH 7.2 DOWNGRADE Pixelpost v1.7.3 and earlier allows remote code execution via unspecified vectors.
- CVE-2010-3305 HIGH 8.8 DOWNGRADE Cross-site request forgery (CSRF) vulnerability in pixelpost 1.7.3 could allow remote attackers to change the
- CVE-2009-4899 CRITICAL 9.8 DOWNGRADE pixelpost 1.7.1 has SQL injection