How severe is CVE-2021-27330?

CVE-2021-27330 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-27330 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-27330?

CVE-2021-27330 affects Triconsole Datepicker Calendar. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-27330?

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

When was CVE-2021-27330 published?

CVE-2021-27330 was published on 2021-02-25 and last updated on 2026-06-17.

CVE-2021-27330

CVE-2021-27330 is a medium-severity vulnerability in Triconsole Datepicker Calendar with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 6% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Triconsole Datepicker Calendar
Published: 2021-02-25
Last modified: 2026-06-17

Description

Triconsole Datepicker Calendar <3.77 is affected by cross-site scripting (XSS) in calendar_form.php. Attackers can read authentication cookies that are still active, which can be used to perform further attacks such as reading browser history, directory listings, and file contents.

Frequently asked questions

What is CVE-2021-27330?: Triconsole Datepicker Calendar <3.77 is affected by cross-site scripting (XSS) in calendar_form.php. Attackers can read authentication cookies that are still active, which can be used to perform further attacks such as reading browser history, directory listings, and file contents.
How severe is CVE-2021-27330?: CVE-2021-27330 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-27330 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-27330?: CVE-2021-27330 affects Triconsole Datepicker Calendar. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-27330?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-27330 published?: CVE-2021-27330 was published on 2021-02-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:triconsole:datepicker_calendar:*:*:*:*:*:*:*:*

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