How severe is CVE-2019-19788?

CVE-2019-19788 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2019-19788 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-19788?

CVE-2019-19788 affects Opera. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-19788?

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

When was CVE-2019-19788 published?

CVE-2019-19788 was published on 2019-12-18 and last updated on 2026-06-17.

CVE-2019-19788

CVE-2019-19788 is a medium-severity vulnerability in Opera with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Opera
Published: 2019-12-18
Last modified: 2026-06-17

Description

Opera for Android before 54.0.2669.49432 is vulnerable to a sandboxed cross-origin iframe bypass attack. By using a service working inside a sandboxed iframe it is possible to bypass the normal sandboxing attributes. This allows an attacker to make forced redirections without any user interaction from a third-party context.

Frequently asked questions

What is CVE-2019-19788?: Opera for Android before 54.0.2669.49432 is vulnerable to a sandboxed cross-origin iframe bypass attack. By using a service working inside a sandboxed iframe it is possible to bypass the normal sandboxing attributes. This allows an attacker to make forced redirections without any user interaction from a third-party context.
How severe is CVE-2019-19788?: CVE-2019-19788 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2019-19788 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-19788?: CVE-2019-19788 affects Opera. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-19788?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-19788 published?: CVE-2019-19788 was published on 2019-12-18 and last updated on 2026-06-17.

References

https://security.opera.com/bypass-a-restriction-in-ofa-54-opera-security-advisories/

Affected products (1)

cpe:2.3:a:opera:opera:*:*:*:*:*:android:*:*

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