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CVE-2023-47271

18
FAUCET Score

CVE-2023-47271 describes an improper input validation vulnerability in PKP-WAL (PKP Web Application Library) versions prior to 3.3.0-16, impacting products like Open Journal Systems (OJS). The flaw allows an attacker to upload non-image files through the native import/export plugin, which are then processed as image files. Rated as Medium severity (CVSS 5.3), this vulnerability has a low attack complexity and requires no user interaction, potentially leading to information disclosure (I:L). While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered some community discussion, with mentions of potential Remote Code Execution (RCE) in online forums.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.3.0-16CPE matchmatch criteria
cpe:2.3:a:sfu:pkp_web_application_library:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.62%
Probability of exploitation in next 30 days
EPSS Percentile
46.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0062 is in the 29th percentile among its peer group of 23,705 CVEs.

Social Chatter

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

Media Mentions

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

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

packetstormsecurity.com / files/176255/PKP-WAL-3.4.0-3-Remote-Code-Execution.html
seclists.org / fulldisclosure/2023/Dec/23
github.com / pkp/pkp-lib/issues/9464
Issue TrackingPatch