Welcart e-Commerce <= 2.8.5 — Authenticated (Subscriber+) Information Disclosure and PHAR deserialization
CVE-2022-4237Published · Updated Action summary
Affected: ≤2.8.5Update to 2.8.6 or newer
All remediation steps- Severity
- Medium6.5
- CVSS
- 6.5CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:LPrivileges required- Low
UI:NUser interaction- None
S:UScope- Unchanged
C:HConfidentiality- High
I:NIntegrity- None
A:NAvailability- None
- Weakness
- CWE-502 PHP Object Injection
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Welcart e-Commerce usc-e-shop
- Affected≤ 2.8.5
- Patched in2.8.6
Update to 2.8.6 or newer.
You are affected if you run ≤ 2.8.5. Version 2.8.6 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Welcart e-Commerce.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 2.8.6, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Welcart e-Commerce to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to WPScanTeam.
The Welcart e-Commerce plugin for WordPress is vulnerable to Information Disclosure due to missing capability checks on the wel_check_progress_ajax AJAX action in versions up to, and including, 2.8.5. This makes it possible for authenticated attackers, with subscriber-level privileges or higher, to read certain log files maintained by the plugin leading to information disclosure. While the log file names are known and are directly accessible via browser on a server that is configured to serve .txt and .log files, the vulnerability allows attackers to access log files on other sites sharing the same server and also provides the ability to read such log files even if direct access is forbidden. Furthermore, the plugin is vulnerable to deserialization of untrusted input via the 'progressfile ' parameter. This makes it possible for attackers to call files using a PHAR wrapper, granted they can trick a site administrator into performing an action such as clicking on a link, that will deserialize and call arbitrary PHP Objects that can be used to perform a variety of malicious actions granted a POP chain is also present. It also requires that the attacker is successful in uploading a file with the serialized payload.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Welcart e-Commerce
All 65| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting ≤2.12.6Update to 2.12.7 | CVE-2026-119505 | |
| Medium6.5 | Unauthenticated Arbitrary Shortcode Execution ≤2.12.6Update to 2.12.7 | CVE-2026-119503 | |
| Medium5.3 | Account Takeover via Insecure Direct Object Reference to Unauthenticated User Input via 'member[ID]' Parameter ≤2.12.5Update to 2.12.6 | CVE-2026-119166 | |
| High7.2 | Unauthenticated Stored Cross-Site Scripting via 'gid' Parameter ≤2.12.5Update to 2.12.6 | CVE-2026-118070 | |
| Medium4.3 | Missing Authorization <2.12.6Update to 2.12.6 | CVE-2026-111032 |
- High7.2Unauthenticated Stored Cross-Site Scripting
≤2.12.6Update to 2.12.7
- Medium6.5Unauthenticated Arbitrary Shortcode Execution
≤2.12.6Update to 2.12.7
- Medium5.3Account Takeover via Insecure Direct Object Reference to Unauthenticated User Input via 'member[ID]' Parameter
≤2.12.5Update to 2.12.6
- High7.2Unauthenticated Stored Cross-Site Scripting via 'gid' Parameter
≤2.12.5Update to 2.12.6
- Medium4.3Missing Authorization
<2.12.6Update to 2.12.6
Same weakness (PHP Object Injection)
All PHP Object Injection| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header | CVE-2026-120688 | |
| Critical9.8 | Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission | CVE-2026-125055 | |
| Critical9.8 | Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter | CVE-2026-119077 | |
| Medium5.3 | Unauthenticated Sensitive Information Exposure in 'search' Parameter | CVE-2026-121518 |
- High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup
≤5.25.25Update to 5.26.45
- Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder
≤1.0.2Update to 1.1
- Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System
≤3.3.9Update to 3.4.0
- Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce
≤5.127.0Update to 5.128.0
Timeline
CVE published
Severity medium, CVSS 6.5
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- [object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.