CVE-2020-11467
CVE-2020-11467 is a high-severity vulnerability in Deskpro with a CVSS 3.x base score of 7.2. 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-502.
Key facts
- Severity: High (CVSS 3.x base score 7.2)
- CVSS v2: 6.5
- EPSS exploit prediction: 4% (89th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-502
- Affected product: Deskpro
- Published:
- Last modified:
Description
An issue was discovered in Deskpro before 2019.8.0. This product enables administrators to modify the helpdesk interface by editing /portal/api/style/edit-theme-set/template-sources theme templates, and uses TWIG as its template engine. While direct access to self and _self variables was not permitted, one could abuse the accessible variables in one's context to reach a native unserialize function via the code parameter. There, on could pass a crafted payload to trigger a set of POP gadgets in order to achieve remote code execution.
Frequently asked questions
- What is CVE-2020-11467?
- An issue was discovered in Deskpro before 2019.8.0. This product enables administrators to modify the helpdesk interface by editing /portal/api/style/edit-theme-set/template-sources theme templates, and uses TWIG as its template engine. While direct access to self and _self variables was not permitted, one could abuse the accessible variables in one's context to reach a native unserialize function via the code parameter. There, on could pass a crafted payload to trigger a set of POP gadgets in order to achieve remote code execution.
- How severe is CVE-2020-11467?
- CVE-2020-11467 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-11467 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-11467?
- CVE-2020-11467 affects Deskpro. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-11467?
- 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-2020-11467 published?
- CVE-2020-11467 was published on 2020-04-01 and last updated on 2026-06-17.
References
- https://blog.redforce.io/attacking-helpdesks-part-1-rce-chain-on-deskpro/
- https://support.deskpro.com/en/news/posts/deskpro-security-update-2019-09
- https://support.deskpro.com/en/news/posts/deskpro-v2019-8-0-released-security-update
Affected products (1)
- cpe:2.3:a:deskpro:deskpro:*:*:*:*:*:*:*:*
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