Curtain: Cross-site request forgery
Curtain is affected by cross-site request forgery. Exposure depends on how the affected operation is made reachable by the site. Exploitation relies on a signed-in privileged user submitting an attacker-controlled request. The published affected range is 1.0.2.
- Component
- Curtain
- Plugin slug
curtain- Affected
- 1.0.2
- Safe version
- See mitigation notes
- Published
- May 10, 2026
This CVE was published May 10, 2026 and is one of 2 known issues for this plugin.
Update, patch or deactivate.
Update Curtain to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
WordPress Plugin Curtain 1.0.2 contains a cross-site request forgery vulnerability that allows attackers to activate or deactivate site maintenance mode by crafting malicious requests. Attackers can trick authenticated administrators into submitting forged requests to the options-general.php page with curtain parameters to toggle maintenance mode without valid nonce validation.
CVE / CNA vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X