How severe is CVE-2019-13646?

CVE-2019-13646 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2019-13646 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-13646?

CVE-2019-13646 affects Firefly-iii Firefly Iii. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-13646?

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

When was CVE-2019-13646 published?

CVE-2019-13646 was published on 2019-07-18 and last updated on 2026-06-17.

CVE-2019-13646

CVE-2019-13646 is a medium-severity vulnerability in Firefly-iii Firefly Iii with a CVSS 3.x base score of 5.4. 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 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Firefly-iii Firefly Iii
Published: 2019-07-18
Last modified: 2026-06-17

Description

Firefly III before 4.7.17.3 is vulnerable to reflected XSS due to lack of filtration of user-supplied data in a search query. NOTE: It is asserted that an attacker must have the same access rights as the user in order to be able to execute the vulnerability

Frequently asked questions

What is CVE-2019-13646?: Firefly III before 4.7.17.3 is vulnerable to reflected XSS due to lack of filtration of user-supplied data in a search query. NOTE: It is asserted that an attacker must have the same access rights as the user in order to be able to execute the vulnerability
How severe is CVE-2019-13646?: CVE-2019-13646 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2019-13646 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-13646?: CVE-2019-13646 affects Firefly-iii Firefly Iii. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-13646?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-13646 published?: CVE-2019-13646 was published on 2019-07-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:firefly-iii:firefly_iii:*:*:*:*:*:*:*:*

More vulnerabilities in Firefly-iii Firefly Iii

CVE-2023-1788 — Critical (CVSS 9.8): Insufficient Session Expiration in GitHub repository firefly-iii/firefly-iii prior to 6.
CVE-2023-1789 — Critical (CVSS 9.8): Improper Input Validation in GitHub repository firefly-iii/firefly-iii prior to 6.0.0.
CVE-2021-3901 — High (CVSS 8.8): firefly-iii is vulnerable to Cross-Site Request Forgery (CSRF)
CVE-2021-3846 — High (CVSS 8.8): firefly-iii is vulnerable to Unrestricted Upload of File with Dangerous Type
CVE-2021-3819 — High (CVSS 8.8): firefly-iii is vulnerable to Cross-Site Request Forgery (CSRF)
CVE-2021-3663 — High (CVSS 7.5): firefly-iii is vulnerable to Improper Restriction of Excessive Authentication Attempts

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