The Wechat Broadcast plugin 1.2.0 and earlier for WordPress allows Directory Traversal via the Image.php url parameter.

published 2018-09-24 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-8134

cvss: 9.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 63.1%; EPSS 63.1% chance of exploitation in 30 days, percentile 99.2%
public exploits: 1; Exploit-DB, plus a Nuclei check

Timeline

2018-09-19 First public exploit (EDB-45438)
2018-09-24 Published

Exploit prediction

63.07% chance of exploitation in the next 30 days, higher than 99.2% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

EDB-45438 WordPress Plugin Wechat Broadcast 1.2.0 - Local File Inclusion webapps, 2018-09-19
Nuclei template WordPress Plugin Wechat Broadcast 1.2.0 - Local File Inclusion nuclei detection template
seclists.org http://seclists.org/fulldisclosure/2018/Sep/32 referenced PoC, tagged "exploit" by a source, unverified
wpvulndb.com https://wpvulndb.com/vulnerabilities/9132 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.0	9.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

CWE-22 Improper Limitation of a Pathname to a Restricted Directory

Technology feeds

WordPress rss critical rss

References

exploit-db.com /exploits/45438/
exploit, third-party-advisory, vdb-entry
seclists.org /fulldisclosure/2018/Sep/32
mailing-list, exploit, third-party-advisory
wpvulndb.com /vulnerabilities/9132
exploit, third-party-advisory
github.com /springjk/wordpress-wechat-broadcast/issues/14
issue-tracking, third-party-advisory
exchange.xforce.ibmcloud.com /vulnerabilities/150202
third-party-advisory, vdb-entry

Sources

CVE List CVE-2018-16283
NVD CVE-2018-16283

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary