Aviary Image Editor Add-on for Gravity Forms Plugin File Upload includes/upload.php unrestricted upload

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Aviary Image Editor Add-on for Gravity Forms Plugin 3.0 on WordPress. Affected is an unknown function of the file includes/upload.php of the component File Upload. The manipulation results in unrestricted upload. This vulnerability was named CVE-2015-4455. The attack may be performed from remote. In addition, an exploit is available.

Detailsinfo

A vulnerability classified as critical has been found in Aviary Image Editor Add-on for Gravity Forms Plugin 3.0 on WordPress (WordPress Plugin). Affected is some unknown functionality of the file includes/upload.php of the component File Upload. The manipulation with an unknown input leads to a unrestricted upload vulnerability. CWE is classifying the issue as CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The bug was discovered 06/10/2015. The weakness was presented 05/23/2017 (Website). The advisory is shared for download at packetstormsecurity.com. This vulnerability is traded as CVE-2015-4455 since 06/09/2015. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1608.002.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 713 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:includes/upload.php it is possible to find vulnerable targets with Google Hacking. The commercial vulnerability scanner Qualys is able to test this issue with plugin 10682 (Wordpress Aviary Image Editor Add-on For Gravity Forms File Upload Plugin Arbitrary File Upload Vulnerability).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Exploit-DB (37275). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.2

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Unrestricted upload
CWE: CWE-434 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/09/2015 🔍
06/10/2015 +1 days 🔍
05/23/2017 +713 days 🔍
05/23/2017 +0 days 🔍
05/23/2017 +0 days 🔍
02/08/2025 +2818 days 🔍

Sourcesinfo

Advisory: 132256
Status: Not defined

CVE: CVE-2015-4455 (🔍)
GCVE (CVE): GCVE-0-2015-4455
GCVE (VulDB): GCVE-100-101628
OSVDB: - CVE-2015-4455 - Aviary Image Editor Add-on For Gravity Forms Plugin - Unrestricted File Upload Issue

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 05/23/2017 12:37
Updated: 02/08/2025 10:14
Changes: 05/23/2017 12:37 (58), 10/01/2020 21:30 (2), 12/07/2022 07:46 (3), 11/24/2024 09:56 (16), 02/08/2025 10:14 (13)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!