CVE-2011-4923

Cross-site scripting (XSS) vulnerability in View.pm in BackupPC 3.0.0, 3.1.0, 3.2.0, 3.2.1, and possibly earlier allows remote attackers to inject arbitrary web script or HTML via the num parameter in a view action to index.cgi, related to the log file viewer, a different vulnerability than CVE-2011-3361.

Published: 2012-02-18 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-4923 is rated Moderate Risk (41/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.59%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2011-4923

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-09-09 0.71% 0.59% -0.12%
2 2025-03-30 2.75% 0.71% -2.04%
3 2025-03-29 — 2.75% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-4923

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2011-4923

OS Trackers for CVE-2011-4923

vendor priority summary link
debian not yet assigned CVE-2011-4923 not yet assigned priority: Debian including 1 source packages (backuppc), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2011-4923
ubuntu medium CVE-2011-4923 medium priority: Ubuntu including 1 source packages (backuppc), 6 status rows across 6 suites (hardy, lucid, maverick, natty, oneiric, upstream): released 6. https://ubuntu.com/security/CVE-2011-4923

Affected software / configurations for CVE-2011-4923

Vendor Product Version Raw CPE
backuppc backuppc 3.0.0 cpe:2.3:a:backuppc:backuppc:3.0.0:*:*:*:*:*:*:*
backuppc backuppc 3.1.0 cpe:2.3:a:backuppc:backuppc:3.1.0:*:*:*:*:*:*:*
backuppc backuppc 3.2.0 cpe:2.3:a:backuppc:backuppc:3.2.0:*:*:*:*:*:*:*
backuppc backuppc 3.2.1 cpe:2.3:a:backuppc:backuppc:3.2.1:*:*:*:*:*:*:*

References for CVE-2011-4923

cvelogic Threat Intelligence