Is CVE-2019-18933 in the CISA KEV catalog?

No. CVE-2019-18933 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-18933?

CVE-2019-18933 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2019-18933?

CVE-2019-18933 has an EPSS score of 1.35% (68th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-18933?

Upgrade zulip server to 2.0.7 or later.

CVE & CISA-KEV Catalog

CVE-2019-18933

CRITICAL

9.8

CVSS v3

NVD

Description

In Zulip Server versions from 1.7.0 to before 2.0.7, a bug in the new user signup process meant that users who registered their account using social authentication (e.g., GitHub or Google SSO) in an organization that also allows password authentication could have their personal API key stolen by an unprivileged attacker, allowing nearly full access to the user's account.

How to fix

Remediation Available

zulip serverNVD

Affected:>= 1.7.0, < 2.0.7Fixed in:2.0.7CVE-2019-18933derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

1.35%probability of exploitation in 30 days

68thpercentile

Moderate risk: more likely to be exploited than 68% of all known CVEs.

References

Patch1

github.com

Vendor Advisory1

blog.zulip.org

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.