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CVE-2019-13464

23
FAUCET Score

CVE-2019-13464 describes a bypass vulnerability in OWASP ModSecurity Core Rule Set (CRS) 3.0.2, affecting ModSecurity and its Core Rule Set. Attackers can bypass PHP script upload rules by using "X.Filename" instead of "X_Filename," as PHP automatically converts dots to underscores in certain contexts. This vulnerability carries a CVSSv3 score of 7.5 (HIGH), indicating a network-based attack with low complexity and a high impact on integrity, allowing for potential unauthorized script uploads. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
3.0.2CPE matchmatch criteria
cpe:2.3:a:modsecurity:owasp_modsecurity_core_rule_set:3.0.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.47%
Probability of exploitation in next 30 days
EPSS Percentile
71.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0147 is in the 52nd percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / SpiderLabs/owasp-modsecurity-crs/issues/1386
ExploitThird Party Advisory
github.com / SpiderLabs/owasp-modsecurity-crs/pull/1391
Third Party Advisory