How severe is CVE-2022-30287?

CVE-2022-30287 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-30287 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 70% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-30287?

CVE-2022-30287 primarily affects Horde Groupware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-30287?

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-2022-30287 published?

CVE-2022-30287 was published on 2022-07-28 and last updated on 2026-06-17.

CVE-2022-30287

CVE-2022-30287 is a high-severity vulnerability in Horde Groupware with a CVSS 3.x base score of 8.0. Its EPSS exploit-prediction score of 70% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-470.

Key facts

Severity: High (CVSS 3.x base score 8.0)
EPSS exploit prediction: 70% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-470
Affected product: Horde Groupware
Published: 2022-07-28
Last modified: 2026-06-17

Description

Horde Groupware Webmail Edition through 5.2.22 allows a reflection injection attack through which an attacker can instantiate a driver class. This then leads to arbitrary deserialization of PHP objects.

Frequently asked questions

What is CVE-2022-30287?: Horde Groupware Webmail Edition through 5.2.22 allows a reflection injection attack through which an attacker can instantiate a driver class. This then leads to arbitrary deserialization of PHP objects.
How severe is CVE-2022-30287?: CVE-2022-30287 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-30287 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 70% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-30287?: CVE-2022-30287 primarily affects Horde Groupware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-30287?: 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-2022-30287 published?: CVE-2022-30287 was published on 2022-07-28 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:horde:groupware:*:*:*:*:webmail:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

More vulnerabilities in Horde Groupware

CVE-2008-7219 — Critical (CVSS 10.0): Horde Kronolith H3 2.1 before 2.1.7 and 2.2 before 2.2-RC2; Nag H3 2.1 before 2.1.4 and 2.2 before 2.2-RC2; Mnemo H3…
CVE-2008-7218 — Critical (CVSS 10.0): Unspecified vulnerability in the Horde API in Horde 3.1 before 3.1.6 and 3.2 before 3.2 before 3.2-RC2; Turba H3 2.1…
CVE-2020-8518 — Critical (CVSS 9.8): Horde Groupware Webmail Edition 5.2.22 allows injection of arbitrary PHP code via CSV data, leading to remote code…
CVE-2013-6364 — High (CVSS 8.8): Horde Groupware Webmail Edition has CSRF and XSS when saving search as a virtual address book
CVE-2019-12095 — High (CVSS 8.8): Horde Trean, as used in Horde Groupware Webmail Edition through 5.2.22 and other products, allows CSRF, as demonstrated…
CVE-2019-9858 — High (CVSS 8.8): Remote code execution was discovered in Horde Groupware Webmail 5.2.22 and 5.2.17. Horde/Form/Type.php contains a…

All CVEs affecting Horde Groupware →

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CVE-2023-6943 — Critical (CVSS 9.8): Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') vulnerability in Mitsubishi Electric…
CVE-2021-31522 — Critical (CVSS 9.8): Kylin can receive user input and load any class through Class.forName(...). This issue affects Apache Kylin 2 version…
CVE-2019-1003041 — Critical (CVSS 9.8): A sandbox bypass vulnerability in Jenkins Pipeline: Groovy Plugin 2.64 and earlier allows attackers to invoke arbitrary…

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