CVE-2013-1916: In WordPress Plugin User Photo 0.9.4, when a photo is uploaded, it is only partially validated and it is possi

This week

HIGH 8.8DOWNGRADE

CVE-2013-1916 is a high-severity flaw (CVSS 8.8) affecting user photo. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In WordPress Plugin User Photo 0.9.4, when a photo is uploaded, it is only partially validated and it is possible to upload a backdoor on the server hosting WordPress. This backdoor can be called (executed) even if the photo has not been yet approved.

Why this priority

High severity
EPSS top 4%: very likely to be exploited
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	12.8% (top 4%)
CISA exploited list	No
Weakness	CWE-434
Published	2022-06-24
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: user photo project

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-06-24 15:15 UTCPublished CVE record published
2026-06-16 23:52 UTCUpdated Record last modified

user photo project user photo DOWNGRADE

Affected: 0.9.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.9.4

1. Check installed version

apt-cache policy user-photo || rpm -q user-photo || user-photo --version

2. No fixed release: DOWNGRADE to a release before 0.9.4 (Debian / Ubuntu)

apt-cache madison user-photo sudo apt install user-photo=<VERSION_BEFORE_0.9.4> sudo apt-mark hold user-photo

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list user-photo sudo dnf downgrade user-photo-<VERSION_BEFORE_0.9.4> sudo dnf versionlock add user-photo

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: WordPress Plugin User Photo Component - Arbitrary File Upload

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.

Quick answers

How do I fix CVE-2013-1916?

user photo: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2013-1916 being exploited?

CVE-2013-1916 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-2013-1916 affect?

CVE-2013-1916 affects user photo. Severity is high (CVSS 8.8). In WordPress Plugin User Photo 0.9.4, when a photo is uploaded, it is only partially validated and it is possible to upload a backdoor on the server hosting WordPress. This backdoor can be called (executed) even if the photo has not been ye

How urgent is CVE-2013-1916?

Priority 60/100. High severity; EPSS top 4%: very likely to be exploited; Public exploit reference

Software pages

WordPress vulnerabilities

References

← Back to latest CVEs