CVE-2026-27539
WordPress Welcart e-Commerce plugin <= 2.11.31 - Cross Site Scripting (XSS) vulnerability
Unauthenticated Cross Site Scripting (XSS) in Welcart e-Commerce <= 2.11.31 versions.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
WordPress Welcart e-Commerce plugin <= 2.11.31 - Cross Site Scripting (XSS) vulnerability
Unauthenticated Cross Site Scripting (XSS) in Welcart e-Commerce <= 2.11.31 versions.
- Record
CVE-2026-27539- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2026-57937
Unauthenticated Cross Site Scripting (XSS) in Welcart e-Commerce <= 2.11.31 versions.
- Record
EUVD-2026-57937- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-845x-v9mv-jq7m
Unauthenticated Cross Site Scripting (XSS) in Welcart e-Commerce <= 2.11.31 versions.
Unauthenticated Cross Site Scripting (XSS) in Welcart e-Commerce <= 2.11.31 versions.
- Record
GHSA-845x-v9mv-jq7m- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L - Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
Unauthenticated Cross Site Scripting (XSS) in Welcart e-Commerce <= 2.11.31 versions.
- Record
CVE-2026-27539- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-27539 is a high vulnerability (CVSS 7.1) in Nanbu Welcart E-commerce, published August 13, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.25%, the 16th percentile. No source names a fixed version.