How severe is CVE-2019-15561?

CVE-2019-15561 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-15561 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-15561?

CVE-2019-15561 affects Flashlingo Project Flashlingo. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-15561?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2019-15561 published?

CVE-2019-15561 was published on 2019-08-26 and last updated on 2026-06-17.

CVE-2019-15561

CVE-2019-15561 is a critical-severity vulnerability in Flashlingo Project Flashlingo with a CVSS 3.x base score of 9.8. 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-89.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Flashlingo Project Flashlingo
Published: 2019-08-26
Last modified: 2026-06-17

Description

FlashLingo before 2019-06-12 allows SQL injection, related to flashlingo.js and db.js.

Frequently asked questions

What is CVE-2019-15561?: FlashLingo before 2019-06-12 allows SQL injection, related to flashlingo.js and db.js.
How severe is CVE-2019-15561?: CVE-2019-15561 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-15561 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-15561?: CVE-2019-15561 affects Flashlingo Project Flashlingo. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-15561?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2019-15561 published?: CVE-2019-15561 was published on 2019-08-26 and last updated on 2026-06-17.

References

https://github.com/vpoliakov/FlashLingo/pull/3

Affected products (1)

cpe:2.3:a:flashlingo_project:flashlingo:*:*:*:*:*:*:*:*

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