CVE-2013-2011: automattic w3_super_cache Improper Encoding or Escaping of Output
CVSS: 9.8v3.1CriticalModified
Published 26-12-2019Last modified 06-08-2024
Vulnerability summary
CVE-2013-2011 is a critical (CVSS 9.8) Improper Encoding or Escaping of Output vulnerability in automattic w3_super_cache. EPSS estimates a 5.13% chance of exploitation in the next 30 days, higher than 92.3% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
9.8/10
010
Critical · v3.1 (wordfence)EPSS score
5.13%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 26-12-2019PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
WordPress W3 Super Cache Plugin before 1.3.2 contains a PHP code-execution vulnerability which could allow remote attackers to inject arbitrary code. This issue exists because of an incomplete fix for CVE-2013-2009.
CVSS metrics
3 scores · 2 sources · 2 versionsCritical 9.8Preferred score · wordfence (Source)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSources2 sources · 8.8–9.8
- NVDNIST8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HDiffers
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
5.13%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
0.00 pp
From 5.13% on 20-09-2026
20-09-202620-10-2026
EPSS score5.13%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (openwall.com)
Maturity: unknown
Weaknesses
CWE · root cause- CWE-116Improper Encoding or Escaping of OutputThe product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved.
- CWE-94Improper Control of Generation of Code ('Code Injection')The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
Affected systems
Automattic1 product
- w3_super_cache< 1.3.2
Super cache plugin1 product
- super cache plugin1.3.2
Wordpress1 product
- wp-super-cache< 1.3.2
3 vendors · 3 products
References
5 links
- www.openwall.com/lists/oss-security/2013/04/25/4X Refsource MISCExploitMailing ListThird Party Advisory