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ExploitedNot in CISA KEV yetFix available

CVE-2018-3810

Exploitation confirmed. First attested on 2023-10-14 by GCVE · kevintel, GCVE · shadowserver.

  • Published2018-01-01
  • Fixed in3.5
  • WeaknessCWE-287

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Authentication Bypass vulnerability in the Oturia Smart Google Code Inserter plugin before 3.5 for WordPress allows unauthenticated attackers to insert arbitrary JavaScript or HTML code (via the sgcgoogleanalytic parameter) that runs on all pages served by WordPress. The saveGoogleCode() function in smartgooglecode.php does not check if the current request is made by an authorized user, thus allowing any unauthenticated user to successfully update the inserted code.

Timeline

dates in UTC
  1. 2018-01-0106:29CVE publishedNVD
  2. 2023-10-1414:54Listed as exploited by GCVEGCVE
  3. 2023-10-1414:54Exploitation first reportedGCVE
  4. 2026-10-2319:23First public proof of conceptPoC-in-GitHub
  5. 2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-3810?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-3810?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Oturia smart google code inserter
BranchAffectedFixed in
3.5< 3.53.5

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Oturia smart google code inserter to 3.5

Advisories and patches

Detection

read 2026-10-23 19:23 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
EDB-43420
Exploit-DB
Proof-of-concept repositories
3 repositories, unverifiedlucad93/CVE-2018-3810cved-sources/cve-2018-3810nth347/CVE-2018-3810_exploit
PoC-in-GitHub

Sources

  • GCVEexploitation2023-10-14
  • NVDCVSS 3.09.8read 2026-10-23
  • NVDCVSS 2.07.5read 2026-10-23
  • NVDweakness (CWE)CWE-287read 2026-10-23
  • FIRST EPSSEPSS score91.3 %read 2026-10-23
  • PoC-in-GitHubproof of concept3read 2026-10-23
  • Exploit-DBdetectionread 2026-10-23

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2018-01-01
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2018-3810?

Authentication Bypass vulnerability in the Oturia Smart Google Code Inserter plugin before 3.5 for WordPress allows unauthenticated attackers to insert arbitrary JavaScript or HTML code (via the sgcgoogleanalytic parameter) that runs on all pages served by WordPress. The saveGoogleCode() function in smartgooglecode.php does not check if the current request is made by an authorized user, thus allowing any unauthenticated user to successfully update the inserted code.

Is CVE-2018-3810 actively exploited?

Active exploitation of CVE-2018-3810 has not been confirmed. Its EPSS score was 91.3% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-3810?

CVE-2018-3810 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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