How severe is CVE-2026-55809?

CVE-2026-55809 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-55809 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-55809?

CVE-2026-55809 affects Flag Attendance Field Project Flag Attendance Field. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-55809?

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

When was CVE-2026-55809 published?

CVE-2026-55809 was published on 2026-07-10 and last updated on 2026-07-14.

CVE-2026-55809

CVE-2026-55809 is a high-severity vulnerability in Flag Attendance Field Project Flag Attendance Field with a CVSS 3.x base score of 8.1. 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-915.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-915
Affected product: Flag Attendance Field Project Flag Attendance Field
Published: 2026-07-10
Last modified: 2026-07-14

Description

Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in Drupal Flag attendance field allows Object Injection. This issue affects Flag attendance field versions: from 0.0.0 to 1.2.

Frequently asked questions

What is CVE-2026-55809?: Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in Drupal Flag attendance field allows Object Injection. This issue affects Flag attendance field versions: from 0.0.0 to 1.2.
How severe is CVE-2026-55809?: CVE-2026-55809 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-55809 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-55809?: CVE-2026-55809 affects Flag Attendance Field Project Flag Attendance Field. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-55809?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-55809 published?: CVE-2026-55809 was published on 2026-07-10 and last updated on 2026-07-14.

References

https://www.drupal.org/sa-contrib-2026-049

Affected products (1)

cpe:2.3:a:flag_attendance_field_project:flag_attendance_field:*:*:*:*:*:drupal:*:*

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