How severe is CVE-2023-23012?

CVE-2023-23012 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-2023-23012 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-23012?

CVE-2023-23012 affects Classroombookings. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-23012?

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

When was CVE-2023-23012 published?

CVE-2023-23012 was published on 2023-01-20 and last updated on 2026-06-17.

CVE-2023-23012

CVE-2023-23012 is a medium-severity vulnerability in Classroombookings 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)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Classroombookings
Published: 2023-01-20
Last modified: 2026-06-17

Description

Cross Site Scripting (XSS) vulnerability in craigrodway classroombookings 2.6.4 allows attackers to execute arbitrary code or other unspecified impacts via the input bgcol in file Weeks.php.

Frequently asked questions

What is CVE-2023-23012?: Cross Site Scripting (XSS) vulnerability in craigrodway classroombookings 2.6.4 allows attackers to execute arbitrary code or other unspecified impacts via the input bgcol in file Weeks.php.
How severe is CVE-2023-23012?: CVE-2023-23012 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-2023-23012 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-23012?: CVE-2023-23012 affects Classroombookings. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-23012?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-23012 published?: CVE-2023-23012 was published on 2023-01-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:classroombookings:classroombookings:2.6.4:*:*:*:*:*:*:*

More vulnerabilities in Classroombookings

CVE-2020-35382 — High (CVSS 7.2): SQL Injection in Classbooking before 2.4.1 via the username field of a CSV file when adding a new user.
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