CVE-2026-18604Public exploit

Unauthorized outbound calls via unguarded exported activity

Published Aug 3, 2026 · Updated Aug 3, 2026

Improper access control in textPlus: Text Message + Call 8.3.0 through 8.3.5 allows local users to place outbound calls via another app. DialerActivity is exported without a permission guard and forwards two attacker-supplied intent extras to DialerFragment.onCreate, whose auto-dial branch calls makeCallWithPermissions. Any installed Android app needs no permissions or user interaction, and successful calls consume the victim's credits and present the victim's textPlus number as caller ID.

CVSS severityUnavailable
Unscored
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in textPlus: Text Message + Call 8.3.0 through 8.3.5 allows local users to place outbound calls via another app. DialerActivity is exported without a permission guard and forwards two attacker-supplied intent extras to DialerFragment.onCreate, whose auto-dial branch calls makeCallWithPermissions. Any installed Android app needs no permissions or user interaction, and successful calls consume the victim's credits and present the victim's textPlus number as caller ID.

The record

CVE
CVE-2026-18604
Published
Aug 3, 2026
Updated
Aug 3, 2026
Vendor
textPlus
Product
textPlus: Text Message + Call
Classifications
CWE-926
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=8.3.0
  2. Affected versionversion=8.3.1
  3. Affected versionversion=8.3.2
  4. Affected versionversion=8.3.3
  5. Affected versionversion=8.3.4
  6. Affected versionversion=8.3.5

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

textPlus · textPlus: Text Message + Callversion=8.3.0; version=8.3.1; version=8.3.2; version=8.3.3; version=8.3.4; version=8.3.5

Published CVSS scores

5.3VulDB CNACVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
5.3VulDB CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
4.8VulDB CNACVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
4.3VulDB CNAAV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-926Improper Export of Android Application Components

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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