CVE-2020-18121
CVE-2020-18121 is a high-severity vulnerability in Indexhibit with a CVSS 3.x base score of 8.8. 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-732.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 6.5
- EPSS exploit prediction: 1% (58th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-732
- Affected product: Indexhibit
- Published:
- Last modified:
Description
A configuration issue in Indexhibit 2.1.5 allows authenticated attackers to modify .php files, leading to getshell.
Frequently asked questions
- What is CVE-2020-18121?
- A configuration issue in Indexhibit 2.1.5 allows authenticated attackers to modify .php files, leading to getshell.
- How severe is CVE-2020-18121?
- CVE-2020-18121 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-18121 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-18121?
- CVE-2020-18121 affects Indexhibit. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-18121?
- 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-2020-18121 published?
- CVE-2020-18121 was published on 2021-08-30 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:indexhibit:indexhibit:2.1.5:*:*:*:*:*:*:*
More vulnerabilities in Indexhibit
- CVE-2019-16314 — Critical (CVSS 9.8): Indexhibit 2.1.5 allows a product reinstallation, with resultant remote code execution, via /ndxzstudio/install.php?p=2.
- CVE-2019-8954 — High (CVSS 8.8): In Indexhibit 2.1.5, remote attackers can execute arbitrary code via the v parameter (in conjunction with the id…
- CVE-2020-18127 — Medium (CVSS 6.5): An issue in the /config/config.php component of Indexhibit 2.1.5 allows attackers to arbitrarily view files.
- CVE-2020-18123 — Medium (CVSS 6.5): A cross-site request forgery (CSRF) vulnerability in Indexhibit 2.1.5 allows attackers to arbitrarily delete admin…
- CVE-2020-18125 — Medium (CVSS 6.1): A reflected cross-site scripting (XSS) vulnerability in the /plugin/ajax.php component of Indexhibit 2.1.5 allows…
- CVE-2020-18124 — Medium (CVSS 5.7): A cross-site request forgery (CSRF) vulnerability in Indexhibit 2.1.5 allows attackers to arbitrarily reset account…
All CVEs affecting Indexhibit →
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- CVE-2025-12004 — Critical (CVSS 10.0): Incorrect Permission Assignment for Critical Resource vulnerability in The Wikimedia Foundation Mediawiki - Lockdown…
- CVE-2014-125121 — Critical (CVSS 10.0): Array Networks vAPV (version 8.3.2.17) and vxAG (version 9.2.0.34) appliances are affected by a privilege escalation…
- CVE-2025-46093 — Critical (CVSS 9.9): LiquidFiles before 4.1.2 supports FTP SITE CHMOD for mode 6777 (setuid and setgid), which allows FTPDrop users to…
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