How severe is CVE-2019-9581?

CVE-2019-9581 has a CVSS 3.x base score of 8.8, 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 high.

Is CVE-2019-9581 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-9581?

CVE-2019-9581 affects Twinkletoessoftware Booked. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-9581?

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-2019-9581 published?

CVE-2019-9581 was published on 2019-03-06 and last updated on 2026-06-17.

CVE-2019-9581

CVE-2019-9581 is a high-severity vulnerability in Twinkletoessoftware Booked with a CVSS 3.x base score of 8.8. Its EPSS exploit-prediction score of 13% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-434.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 13% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Twinkletoessoftware Booked
Published: 2019-03-06
Last modified: 2026-06-17

Description

phpscheduleit Booked Scheduler 2.7.5 allows arbitrary file upload via the Favicon field, leading to execution of arbitrary Web/custom-favicon.php PHP code, because Presenters/Admin/ManageThemePresenter.php does not ensure an image file extension.

Frequently asked questions

What is CVE-2019-9581?: phpscheduleit Booked Scheduler 2.7.5 allows arbitrary file upload via the Favicon field, leading to execution of arbitrary Web/custom-favicon.php PHP code, because Presenters/Admin/ManageThemePresenter.php does not ensure an image file extension.
How severe is CVE-2019-9581?: CVE-2019-9581 has a CVSS 3.x base score of 8.8, 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 high.
Is CVE-2019-9581 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-9581?: CVE-2019-9581 affects Twinkletoessoftware Booked. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-9581?: 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-2019-9581 published?: CVE-2019-9581 was published on 2019-03-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:twinkletoessoftware:booked:2.7.5:*:*:*:*:*:*:*

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