CVE-2015-4455: Unrestricted file upload vulnerability in includes/upload.php in the Aviary Image Editor Add-on For Gravity Fo

Q: How do I fix CVE-2015-4455?

aviary image editor add-on for gravity forms: upgrade to newer than 3.0. Exact commands for each OS are on this page.

Q: Is CVE-2015-4455 being exploited?

CVE-2015-4455 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2015-4455 affect?

CVE-2015-4455 affects aviary image editor add-on for gravity forms. Severity is critical (CVSS 9.8). Unrestricted file upload vulnerability in includes/upload.php in the Aviary Image Editor Add-on For Gravity Forms plugin 3.0 beta for WordPress allows remote attackers to execute arbitrary code by uploading a file with an executable extensi

Q: How urgent is CVE-2015-4455?

Priority 69/100. Critical severity; EPSS top 1%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2015-4455 is a critical-severity flaw (CVSS 9.8) affecting aviary image editor add-on for gravity forms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unrestricted file upload vulnerability in includes/upload.php in the Aviary Image Editor Add-on For Gravity Forms plugin 3.0 beta for WordPress allows remote attackers to execute arbitrary code by uploading a file with an executable extension, then accessing it via a direct request to the file in wp-content/uploads/gform_aviary.

Why this priority

Critical severity
EPSS top 1%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	40.6% (top 1%)
CISA exploited list	No
Weakness	CWE-434
Published	2017-05-23
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: aviary image editor add-on for gravity forms project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-05-23 04:29 UTCPublished CVE record published
2026-06-17 00:27 UTCUpdated Record last modified

aviary image editor add-on for gravity forms project aviary image editor add-on for gravity forms UPGRADE

Affected: <= 3.0

Fixed in: newer than 3.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy aviary-image-editor-add-on-for-gravity-forms || rpm -q aviary-image-editor-add-on-for-gravity-forms || aviary-image-editor-add-on-for-gravity-forms --version

2. UPGRADE to newer than 3.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade aviary-image-editor-add-on-for-gravity-forms

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade aviary-image-editor-add-on-for-gravity-forms

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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 Aviary Image Editor Addon For Gravity Forms 3.0 Beta - Arbitrary File Upload
Nuclei scan template: WordPress Plugin Aviary Image Editor Addon For Gravity Forms 3.0 Beta - 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-2015-4455?

aviary image editor add-on for gravity forms: upgrade to newer than 3.0. Exact commands for each OS are on this page.

Is CVE-2015-4455 being exploited?

CVE-2015-4455 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-2015-4455 affect?

CVE-2015-4455 affects aviary image editor add-on for gravity forms. Severity is critical (CVSS 9.8). Unrestricted file upload vulnerability in includes/upload.php in the Aviary Image Editor Add-on For Gravity Forms plugin 3.0 beta for WordPress allows remote attackers to execute arbitrary code by uploading a file with an executable extensi

How urgent is CVE-2015-4455?

Priority 69/100. Critical severity; EPSS top 1%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

WordPress vulnerabilities · PHP vulnerabilities

References

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