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Descope < 1.2.0 - Unauthenticated Account Takeover

CVE-2026-110959EUVD-2026-124272GHSA-FF68-VPQW-WJ7C

9.8CriticalCISA-ADP
Exploited
No known exploitation
Fix
Fixed in 1.2.0
Who is exposed
Not reported

Do first: Upgrade to a fixed version: 1.2.0.

Published
Last modified
Reference
Last checked
0.19% · 8th percentile
30/100 · provisional
None on Exploit-DB, Metasploit or GitHub
On X
View the cve.now post
  • Exploitation: none
  • Automatable: yes
  • Technical impact: total

Summary

The Descope WordPress plugin, before a fixed release, does not check the authentication token it receives before creating a WordPress session. An attacker with no login can use just an account's email address to get a session for that account, including an administrator account, and take it over.

Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.

Read the original description

The Descope WordPress plugin before 1.2.0 does not validate the authentication token it receives before creating a WordPress session, accepting any non-empty token, so an unauthenticated attacker can obtain a session for any existing account, including an administrator, by supplying that account's email address.

cve.now Index

30Pcve.now Index 30 of 100 · methodology v3 · provisional
  • Exploitation0/40No signal
  • Exposure20/25No login or user action needed per the CVSS vector, CISA rates it automatable · Unknown: No advisory context yet
  • Reach?/20Unknown. No tracked technology or package matched
  • Severity10/10CVSS 9.8, total technical impact per CISA
  • No patch0/5No signal

What would change the score

  • Would score about 75 if added to CISA KEV
  • Would score about 70 if CISA's SSVC rates exploitation active
  • Would score about 35 if advisories confirm default setups are exposed

What to do

  • Upgrade to a fixed version: 1.2.0.

Check your systems with an agent

Paste this into a coding or ops agent. It checks your systems read-only and reports a table per asset.

Check whether my systems are affected by CVE-2026-110959 (Descope < 1.2.0 - Unauthenticated Account Takeover), using the cve.now data below.

Rules: work read-only. Do not run exploit code, proof-of-concept scripts or scanners that send attack payloads, and do not change any configuration, package, image or deployment. Report findings only.

What cve.now has for CVE-2026-110959 (entry last updated 2026-11-12):
Affected:
- Unknown Descope: fixed in 1.2.0
Fixed versions: 1.2.0.
Setup: unknown whether the bug needs a non-default feature or setting. Check the advisory.
CISA KEV: CVE-2026-110959 is not listed as of cve.now's last read.
This KEV status is for CVE-2026-110959 only. If you also check another CVE, look up its own KEV status; never assume it from this one.

How to check:
- Installed software: check what is actually running, not what a repo declares. Read the version from each host, container image and Kubernetes node (the binary's version output, the OS package database, image layers), and check whether the conditions above hold there. Distribution packages may carry a backported fix under an older version number; confirm against the distribution's own advisory.

Verify against the linked advisories before concluding, and cite the date you read each one:
- the references on https://cve.now/CVE-2026-110959
Do not conclude an asset is unaffected unless you checked it and the evidence covers both its version and the conditions above. If you could not check something, mark it unknown and say what is missing.

Report a table with one row per asset and these columns: Asset | Version or build | Status (affected, fixed, not applicable, unknown) | Compensating controls | Exposure (internet-facing, internal, none) | Evidence | Next action.

Entry: https://cve.now/CVE-2026-110959
For follow-up questions, use the cve.now MCP server at https://mcp.cve.now/mcp (no authentication), for example execute with name cve.get and arguments {"id": "CVE-2026-110959"}.

Timeline

  1. CVE published
  2. First seen by cve.now
  3. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: total

  4. Record last updated
  5. Posted on X by cve.now

Affected versions

  • Unknown Descope

    fixed in 1.2.0

Evidence 3

CVE record · 2

Establishes: The identifier and description.

  1. Record
  2. Record

Public exploit code · 1

Establishes: Public exploit code exists (Exploit-DB, Metasploit, Nuclei and GitHub).

  1. Exploit

Corrections

None so far.

Something wrong on this page? Report an error. Every fix is listed here.

Questions about CVE-2026-110959

Is CVE-2026-110959 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-2026-110959?

Descope: before 1.2.0.Source: cve.now feed data

How do I fix CVE-2026-110959?

Upgrade to a fixed version: 1.2.0.Source: cve.now feed data