How severe is CVE-2019-8116?

CVE-2019-8116 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2019-8116 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-8116?

CVE-2019-8116 primarily affects Magento. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-8116?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-8116 published?

CVE-2019-8116 was published on 2019-11-05 and last updated on 2026-06-17.

CVE-2019-8116

CVE-2019-8116 is a high-severity vulnerability in Magento with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-384.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-384
Affected product: Magento
Published: 2019-11-05
Last modified: 2026-06-17

Description

Insecure authentication and session management vulnerability exists in Magento 2.2 prior to 2.2.10, Magento 2.3 prior to 2.3.3 or 2.3.2-p1. An unauthenticated user can leverage a guest session id value following a successful login to gain access to customer account index page.

Frequently asked questions

What is CVE-2019-8116?: Insecure authentication and session management vulnerability exists in Magento 2.2 prior to 2.2.10, Magento 2.3 prior to 2.3.3 or 2.3.2-p1. An unauthenticated user can leverage a guest session id value following a successful login to gain access to customer account index page.
How severe is CVE-2019-8116?: CVE-2019-8116 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2019-8116 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-8116?: CVE-2019-8116 primarily affects Magento. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-8116?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-8116 published?: CVE-2019-8116 was published on 2019-11-05 and last updated on 2026-06-17.

References

https://magento.com/security/patches/magento-2.3.3-and-2.2.10-security-update

Affected products (4)

cpe:2.3:a:magento:magento:*:*:*:*:commerce:*:*:*
cpe:2.3:a:magento:magento:*:*:*:*:open_source:*:*:*
cpe:2.3:a:magento:magento:2.3.2:-:*:*:commerce:*:*:*
cpe:2.3:a:magento:magento:2.3.2:-:*:*:open_source:*:*:*

More vulnerabilities in Magento

CVE-2020-9664 — Critical (CVSS 9.8): Magento versions 1.14.4.5 and earlier, and 1.9.4.5 and earlier have a php object injection vulnerability. Successful…
CVE-2020-9632 — Critical (CVSS 9.8): Magento versions 2.3.4 and earlier, 2.2.11 and earlier (see note), 1.14.4.4 and earlier, and 1.9.4.4 and earlier have a…
CVE-2020-9631 — Critical (CVSS 9.8): Magento versions 2.3.4 and earlier, 2.2.11 and earlier (see note), 1.14.4.4 and earlier, and 1.9.4.4 and earlier have a…
CVE-2020-9630 — Critical (CVSS 9.8): Magento versions 2.3.4 and earlier, 2.2.11 and earlier (see note), 1.14.4.4 and earlier, and 1.9.4.4 and earlier have a…
CVE-2020-9585 — Critical (CVSS 9.8): Magento versions 2.3.4 and earlier, 2.2.11 and earlier (see note), 1.14.4.4 and earlier, and 1.9.4.4 and earlier have a…
CVE-2020-9583 — Critical (CVSS 9.8): Magento versions 2.3.4 and earlier, 2.2.11 and earlier (see note), 1.14.4.4 and earlier, and 1.9.4.4 and earlier have a…

All CVEs affecting Magento →

Other CWE-384 (Session Fixation) vulnerabilities

CVE-2024-11317 — Critical (CVSS 10.0): Session Fixation vulnerabilities allow an attacker to fix a users session identifier before login providing an…
CVE-2024-38513 — Critical (CVSS 10.0): Fiber is an Express-inspired web framework written in Go A vulnerability present in versions prior to 2.52.5 is a…
CVE-2021-20151 — Critical (CVSS 10.0): Trendnet AC2600 TEW-827DRU version 2.08B01 contains a flaw in the session management for the device. The router's…
CVE-2025-67446 — Critical (CVSS 9.8): Improper Authentication (Authentication Bypass) exists in Neterbit NW-431F Router 20241014-IR03 and before. The router…
CVE-2026-25101 — Critical (CVSS 9.8): Bludit allows user's session identifier to be set before authentication. The value of this session ID stays the same…
CVE-2026-24352 — Critical (CVSS 9.8): PluXml CMS allows a user's session identifier to be set before authentication. The value of this session ID stays the…

Browse all CWE-384 (Session Fixation) vulnerabilities →