SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2013-1916

This backdoor can be called (executed) even if the photo has not been yet approved.

EXPLOIT ✓HIGH 8.8EPSS 12.8%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 12.8%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.

Description

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.

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
12.85% probability · 96th percentile
Public exploits
1 in Exploit-DB · verified · first 17 February 2011
CISA KEV
Not listed
Weakness
CWE-434
Affected
user photo project/user photo
Source
secalert@redhat.com
EPSS trend
0%8%15%3 November 2026: 12.85%3 November 20263 November 2026

EPSS 12.8% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-16181source ↗WordPress Plugin User Photo Component - Arbitrary File Uploadphp · ADVtoolswebapps17 February 2011yes

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.