Exsile SMS Gateway < 2.0.0 - Subscriber+ Privilege Escalation via Arbitrary Option Update
- Exploited
- No known exploitation
- Fix
- Fixed in 2.0.0
- Who is exposed
- Not reported
Do first: Upgrade to a fixed version: 2.0.0.
- Last modified
- FIRST's estimate of the chance attackers exploit it in the next 30 days, updated daily.What do these mean? →
- 0.13% · 2nd percentile
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 13/100 · provisional
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
The Exsile SMS Gateway (iLeads SMS Gateway) WordPress plugin lets any logged-in user, such as a subscriber, change arbitrary WordPress site options and so gain administrator rights. The attacker must already have a logged-in account on the site.
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
Read the original description
The iLeads SMS Gateway by Exsile WordPress plugin before 2.0.0 does not check capabilities or nonces in several AJAX actions that update a site option chosen by the request, allowing any authenticated user, such as a subscriber, to change arbitrary WordPress options and escalate to administrator, for example by enabling registration with administrator as the default role.
cve.now Index
- Exploitation0/40No signal
- Exposure3/25Reachable over the network · Unknown: No advisory context yet
- Reach?/20Unknown. No tracked technology or package matched
- Severity9.8/10CVSS 8.8, total technical impact per CISA
- No patch0/5No signal
What would change the score
- Would score about 68 if added to CISA KEV
- Would score about 63 if CISA's SSVC rates exploitation active
- Would score about 32 if advisories confirm default setups are exposed
What to do
Upgrade to a fixed version: 2.0.0.
Timeline
- CVE published
- First seen by cve.now
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Unknown iLeads SMS Gateway by Exsile
fixed in 2.0.0
Evidence 1
- Exploit
Corrections
None so far.
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Questions about CVE-2026-121866
Is CVE-2026-121866 being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data
Which versions are affected by CVE-2026-121866?
iLeads SMS Gateway by Exsile: before 2.0.0.Source: cve.now feed data
How do I fix CVE-2026-121866?
Upgrade to a fixed version: 2.0.0.Source: cve.now feed data