Security readout for executives and security teams
Plain-English summary
Horde Groupware Webmail Edition through 5.2.22 has a flaw that can let an attacker trigger unsafe PHP object deserialization through reflection-based driver instantiation. For organizations still running Horde webmail, this is a serious application risk because deserialization bugs can expose mail systems to server-side compromise paths.
Executive priority
Treat this as a high-priority legacy webmail risk if Horde is present. Confirm exposure quickly, patch or isolate affected systems, and escalate unsupported deployments because email platforms are high-value targets.
Technical view
CVE-2022-30287 is described as reflection injection in Horde Groupware Webmail Edition through 5.2.22. The issue allows attacker-controlled instantiation of a driver class, leading to arbitrary deserialization of PHP objects. The bundle provides no CVSS score, CWE mapping, or complete affected package matrix.
Likely exposure
Exposure is most likely in internet-accessible Horde Groupware Webmail Edition deployments, especially versions through 5.2.22 or distribution packages not carrying security updates. The bundle does not identify all downstream package names or CPEs.
Exploitation context
The CVE is not listed as CISA KEV in the bundle. A SonarSource reference discusses Horde Webmail RCE via email, but the provided data does not prove active exploitation in the wild.
Researcher notes
Evidence is limited to the CVE description and public references. The key technical primitive is attacker-influenced class instantiation followed by PHP object deserialization. Do not infer affected products beyond Horde Groupware Webmail Edition through 5.2.22 without vendor or package-specific confirmation.
Mitigation direction
- Identify any Horde Groupware Webmail Edition deployments and package versions.
- Apply vendor or distribution security updates for Horde and related packages.
- Review Debian LTS advisory DLA 3090-1 if using Debian packages.
- Restrict public access where webmail exposure is not required.
- Check current Horde project or maintainer guidance before assuming a fix path.
Validation and detection
- Inventory webmail hosts for Horde Groupware Webmail Edition through 5.2.22.
- Confirm installed packages include relevant Horde security updates.
- Review web server and mail application logs for unusual Horde errors.
- Validate public exposure through approved asset management or scanning tools.
- Document any unsupported Horde deployments for replacement planning.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2022-30287 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.horde.org/apps/webmailCVE reference · x_refsource_MISC
- https://blog.sonarsource.com/horde-webmail-rce-via-email/CVE reference · x_refsource_MISC
- [debian-lts-announce] 20220831 [SECURITY] [DLA 3090-1] php-horde-turba security updateCVE reference · mailing-list, x_refsource_MLIST
- https://lists.debian.org/debian-lts-announce/2024/10/msg00014.htmlCVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
