How severe is CVE-2023-23326?

CVE-2023-23326 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-23326 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-23326?

CVE-2023-23326 affects Avantfax. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-23326?

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

When was CVE-2023-23326 published?

CVE-2023-23326 was published on 2023-03-10 and last updated on 2026-07-05.

CVE-2023-23326

CVE-2023-23326 is a medium-severity vulnerability in Avantfax with a CVSS 3.x base score of 5.4. 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 5.4)
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Avantfax
Published: 2023-03-10
Last modified: 2026-07-05

Description

A Stored Cross-Site Scripting (XSS) vulnerability exists in AvantFAX 3.3.7. An authenticated low privilege user can inject arbitrary Javascript into their e-mail address which is executed when an administrator logs into AvantFAX to view the admin dashboard. This may result in stealing an administrator's session cookie and hijacking their session.

Frequently asked questions

What is CVE-2023-23326?: A Stored Cross-Site Scripting (XSS) vulnerability exists in AvantFAX 3.3.7. An authenticated low privilege user can inject arbitrary Javascript into their e-mail address which is executed when an administrator logs into AvantFAX to view the admin dashboard. This may result in stealing an administrator's session cookie and hijacking their session.
How severe is CVE-2023-23326?: CVE-2023-23326 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-23326 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-23326?: CVE-2023-23326 affects Avantfax. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-23326?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-23326 published?: CVE-2023-23326 was published on 2023-03-10 and last updated on 2026-07-05.

References

Affected products (1)

cpe:2.3:a:avantfax:avantfax:3.3.7:*:*:*:*:*:*:*

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