Is CVE-2019-11831 in the CISA KEV catalog?

No. CVE-2019-11831 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-11831?

CVE-2019-11831 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2019-11831?

CVE-2019-11831 has an EPSS score of 5.59% (92th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-11831?

Upgrade drupal to 8.7.1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2019-11831

CRITICALEPSS 92th pctl

9.8

CVSS v3

NVD

Description

The PharStreamWrapper (aka phar-stream-wrapper) package 2.x before 2.1.1 and 3.x before 3.1.1 for TYPO3 does not prevent directory traversal, which allows attackers to bypass a deserialization protection mechanism, as demonstrated by a phar:///path/bad.phar/../good.phar URL.

CWE-22Path Traversal CWE-502Deserialization of Untrusted Data

How to fix

Remediation Available

drupalNVD

Affected:>= 8.7.0, < 8.7.1Fixed in:8.7.1CVE-2019-11831derived from NVD

pharstreamwrapperNVD

Affected:>= 3.0.0, < 3.1.1Fixed in:3.1.1CVE-2019-11831derived 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

5.59%probability of exploitation in 30 days

92ndpercentile

High risk: more likely to be exploited than 92% of all known CVEs.

References

Vendor Advisory1

typo3.org

Third-Party Advisory8

Other references6

Related Vulnerabilities

Other CWE-22 (Path Traversal) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-23897	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-32315	High	8.6	100%	KEV	Fix
CVE-2022-29464	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-26086	Medium	5.3	100%	KEV	Fix
CVE-2021-22005	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-5902	Critical	9.8	100%	KEV + Ransom	Fix

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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.