CVE-2019-7849
Magento 2 Community Edition Session Fixation Check
A defense-in-depth check was added to mitigate inadequate session validation handling by 3rd party checkout modules. This impacts Magento 1.x prior to 1.9.4.2, Magento Commerce prior to 1.14.4.2, Magento 2.1 prior to 2.1.18, Magento 2.2 prior to 2.2.9 and Magento 2.3 prior to 2.3.2.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
A defense-in-depth check was added to mitigate inadequate session validation handling by 3rd party checkout modules. This impacts Magento 1.x prior to 1.9.4.2, Magento Commerce prior to 1.14.4.2, Magento 2.1 prior to 2.1.18, Magento 2.2 prior to 2.2.9 and Magento 2.3 prior to 2.3.2.
- Record
CVE-2019-7849- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:P/A:N - Weakness
- CWE-384
- Updated
- 2026-11-02
CVE List No score
A defense-in-depth check was added to mitigate inadequate session validation handling by 3rd party checkout modules. This impacts Magento 1.x prior to 1.9.4.2, Magento Commerce prior to 1.14.4.2, Magento 2.1 prior to 2.1.18, Magento 2.2 prior to 2.2.9 and Magento 2.3 prior to 2.3.2.
- Record
CVE-2019-7849- Updated
- 2026-11-02
EUVDEUVD-2022-5306 No score
A defense-in-depth check was added to mitigate inadequate session validation handling by 3rd party checkout modules. This impacts Magento 1.x prior to 1.9.4.2, Magento Commerce prior to 1.14.4.2, Magento 2.1 prior to 2.1.18, Magento 2.2 prior to 2.2.9 and Magento 2.3 prior to 2.3.2.
- Record
EUVD-2022-5306- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-v797-hfv8-v2xm
Magento 2 Community Edition Session Fixation Check
A defense-in-depth check was added to mitigate inadequate session validation handling by 3rd party checkout modules. This impacts Magento 1.x prior to 1.9.4.2, Magento Commerce prior to 1.14.4.2, Magento 2.1 prior to 2.1.18, Magento 2.2 prior to 2.2.9 and Magento 2.3 prior to 2.3.2.
- Record
GHSA-v797-hfv8-v2xm- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-384
- Updated
- 2026-11-02
OSV
A defense-in-depth check was added to mitigate inadequate session validation handling by 3rd party checkout modules. This impacts Magento 1.x prior to 1.9.4.2, Magento Commerce prior to 1.14.4.2, Magento 2.1 prior to 2.1.18, Magento 2.2 prior to 2.2.9 and Magento 2.3 prior to 2.3.2.
- Record
CVE-2019-7849- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
OSVGHSA-v797-hfv8-v2xm
Magento 2 Community Edition Session Fixation Check
A defense-in-depth check was added to mitigate inadequate session validation handling by 3rd party checkout modules. This impacts Magento 1.x prior to 1.9.4.2, Magento Commerce prior to 1.14.4.2, Magento 2.1 prior to 2.1.18, Magento 2.2 prior to 2.2.9 and Magento 2.3 prior to 2.3.2.
- Record
GHSA-v797-hfv8-v2xm- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-384
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
magento/community-editionPackagist |
2.1.0 up to 2.1.18 | 2.1.18 |
magento/community-editionPackagist |
2.2.0 up to 2.2.9 | 2.2.9 |
magento/community-editionPackagist |
2.3.0 up to 2.3.2 | 2.3.2 |
magento/community-editionPackagist |
2.1.0 up to 2.1.18, plus listed versions 2.1.12.1.102.1.112.1.122.1.13 Show 12 moreShow less2.1.142.1.152.1.162.1.172.1.22.1.32.1.42.1.52.1.62.1.72.1.82.1.9 |
2.1.18 |
magento/community-editionPackagist |
2.2.0 up to 2.2.9, plus listed versions 2.2.12.2.22.2.32.2.42.2.52.2.62.2.72.2.8 |
2.2.9 |
magento/community-editionPackagist |
2.3.0 up to 2.3.2, plus listed versions 2.3.1 |
2.3.2 |
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-2019-7849 is a high vulnerability (CVSS 7.5) in Magento, published August 2, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.15%, the 67th percentile. Fixed in magento/community-edition 2.1.18.
References
magento.com/security/patches/magento-2.3.2-2.2.9-and-2.1.18-security-update-33
nvd.nist.gov/vuln/detail/CVE-2019-7849
web.archive.org/web/20220121011306/https://magento.com/security/patches/magento-2.3.2-2.2.9-and-2.1.18-security-update-33
github.com/FriendsOfPHP/security-advisories/blob/master/magento/magento1ce/CVE-2019-7849.yaml