How severe is CVE-2019-13389?

CVE-2019-13389 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-2019-13389 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-13389?

CVE-2019-13389 affects Rainloop Webmail. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-13389?

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

When was CVE-2019-13389 published?

CVE-2019-13389 was published on 2020-03-20 and last updated on 2026-06-17.

CVE-2019-13389

CVE-2019-13389 is a medium-severity vulnerability in Rainloop Webmail with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Rainloop Webmail
Published: 2020-03-20
Last modified: 2026-06-17

Description

RainLoop Webmail before 1.13.0 lacks XSS protection mechanisms such as xlink:href validation, the X-XSS-Protection header, and the Content-Security-Policy header.

Frequently asked questions

What is CVE-2019-13389?: RainLoop Webmail before 1.13.0 lacks XSS protection mechanisms such as xlink:href validation, the X-XSS-Protection header, and the Content-Security-Policy header.
How severe is CVE-2019-13389?: CVE-2019-13389 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-2019-13389 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-13389?: CVE-2019-13389 affects Rainloop Webmail. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-13389?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-13389 published?: CVE-2019-13389 was published on 2020-03-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:rainloop:webmail:*:*:*:*:*:*:*:*

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