CVE-2020-15178
Potential XSS in PrestaShop contactform
In PrestaShop contactform module (prestashop/contactform) before version 4.3.0, an attacker is able to inject JavaScript while using the contact form. The message field was incorrectly unescaped, possibly allowing attackers to execute arbitrary JavaScript in a victim's browser.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Potential XSS in PrestaShop contactform
In PrestaShop contactform module (prestashop/contactform) before version 4.3.0, an attacker is able to inject JavaScript while using the contact form. The message field was incorrectly unescaped, possibly allowing attackers to execute arbitrary JavaScript in a victim's browser.
- Record
CVE-2020-15178- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2020-0925
In PrestaShop contactform module (prestashop/contactform) before version 4.3.0, an attacker is able to inject JavaScript while using the contact form. The message field was incorrectly unescaped, possibly allowing attackers to execute arbitrary JavaScript in a victim's browser.
- Record
EUVD-2020-0925- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-95hx-62rh-gg96
Potential XSS injection In PrestaShop contactform
Impact
An attacker is able to inject javascript while using the contact form.
Patches
The problem is fixed in v4.3.0
References
- Record
GHSA-95hx-62rh-gg96- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
In PrestaShop contactform module (prestashop/contactform) before version 4.3.0, an attacker is able to inject JavaScript while using the contact form. The message field was incorrectly unescaped, possibly allowing attackers to execute arbitrary JavaScript in a victim's browser.
- Record
CVE-2020-15178- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N - CVSS 3.1
- 9.3 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
In PrestaShop contactform module (prestashop/contactform) before version 4.3.0, an attacker is able to inject JavaScript while using the contact form. The message field was incorrectly unescaped, possibly allowing attackers to execute arbitrary JavaScript in a victim's browser.
- Record
CVE-2020-15178- CVSS 3.1
- 9.3 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N - Updated
- 2026-11-02
OSVGHSA-95hx-62rh-gg96
Potential XSS injection In PrestaShop contactform
Impact
An attacker is able to inject javascript while using the contact form.
Patches
The problem is fixed in v4.3.0
References
- Record
GHSA-95hx-62rh-gg96- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
prestashop/contactformPackagist |
1.0.1 up to 4.3.0 | 4.3.0 |
prestashop/contactformPackagist |
1.0.1 up to 4.3.0, plus listed versions v1.0.1v2.0.0v2.0.1v2.0.2v3.0.0 Show 4 moreShow lessv4.0.0v4.1.0v4.1.1v4.2.0 |
4.3.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-15178 is a high vulnerability (CVSS 8.0) in Prestashop Contactform, published September 15, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.22%, the 68th percentile. Fixed in prestashop/contactform 4.3.0.
References
github.com/PrestaShop/contactform/security/advisories/GHSA-95hx-62rh-gg96
packagist.org/packages/prestashop/contactform
nvd.nist.gov/vuln/detail/CVE-2020-15178