How severe is CVE-2019-13345?

CVE-2019-13345 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2019-13345 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 74% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-13345?

CVE-2019-13345 primarily affects Squid-cache Squid. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-13345?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-13345 published?

CVE-2019-13345 was published on 2019-07-05 and last updated on 2026-06-17.

CVE-2019-13345

CVE-2019-13345 is a medium-severity vulnerability in Squid-cache Squid with a CVSS 3.x base score of 6.1. Its EPSS exploit-prediction score of 74% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 74% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Squid-cache Squid
Published: 2019-07-05
Last modified: 2026-06-17

Description

The cachemgr.cgi web module of Squid through 4.7 has XSS via the user_name or auth parameter.

Frequently asked questions

What is CVE-2019-13345?: The cachemgr.cgi web module of Squid through 4.7 has XSS via the user_name or auth parameter.
How severe is CVE-2019-13345?: CVE-2019-13345 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2019-13345 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 74% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-13345?: CVE-2019-13345 primarily affects Squid-cache Squid. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-13345?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-13345 published?: CVE-2019-13345 was published on 2019-07-05 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

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Threat intelligence

Threat-intel indicators referencing this CVE:

200.89.159.59 (ipv4-addr)
192.3.127.40 (ipv4-addr)