CVE-2013-4878Parallels Plesk Panel Vulnerability
The default configuration of Parallels Plesk Panel 9.0.x and 9.2.x on UNIX, and Small Business Panel 10.x on UNIX, has an improper ScriptAlias directive for phppath, which makes it easier for remote attackers to execute arbitrary code via a crafted request, a different…
Published Jul 18, 2013 · Updated Apr 28, 2026
Key Facts
Patch immediately- CVE-2013-4878 is a high-severity vulnerability (CVSS 7.5 v2) affecting Parallels Plesk Panel, Parallels Small Business Panel.
- It is exploited in the wild, listed in Industry KEV feed since Jun 6, 2013. Public exploit code is available.
- EPSS estimates a 31% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Scores
CVSS v2
7.5
AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS (30-day exploit likelihood)
31%
Higher than 98.2% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
36/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Jun 6, 2013
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
3
Reports of active use
Advisories And Exploit References
- advisoryhttp://kb.parallels.com/116241
Description
The default configuration of Parallels Plesk Panel 9.0.x and 9.2.x on UNIX, and Small Business Panel 10.x on UNIX, has an improper ScriptAlias directive for phppath, which makes it easier for remote attackers to execute arbitrary code via a crafted request, a different vulnerability than CVE-2012-1823.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Jun 6, 2013 | n/a | Not reported |
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Parallels Plesk PanelParallels | 9.0, 9.2 | n/a |
| Parallels Small Business PanelParallels | 10.0 | n/a |
Timeline
Added to Industry KEV feed
Jun 6, 2013
Publicly disclosed
Jul 18, 2013
Last updated
Apr 28, 2026
Weakness Type
- CWE-264
References
- advisorykb.parallels.com · 116241
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitExploitDB-25986
FAQ
Common Questions.
The default configuration of Parallels Plesk Panel 9.0.x and 9.2.x on UNIX, and Small Business Panel 10.x on UNIX, has an improper ScriptAlias directive for phppath, which makes it easier for remote attackers to execute arbitrary code via a crafted request, a different vulnerability than CVE-2012-1823.
Affected: Parallels Plesk Panel versions 9.0, 9.2; Parallels Small Business Panel versions 10.0. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Jun 6, 2013.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2013-4878 On Your Attack Surface?
Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.
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