CVE-2026-108159: XSS (CVSS 7.5)

Description

AstronRPA through 1.1.6 contains a cross-site scripting vulnerability in the desktop client's smart-component chat that allows remote attackers to execute OS commands by abusing unsanitized LLM output rendered via v-html. Attackers can embed prompt-injection content in a web page so the model emits HTML event handlers invoking the unrestricted open-path IPC handler with shell metacharacters, executing commands as the desktop user.

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0033

Probability of exploitation

0.25%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

References

Other References

https://github.com/iflytek/astron-rpa https://github.com/iflytek/astron-rpa/blob/8b015bc1b15d23fbdc55c78ff1de9af4bb65fba6/frontend/packages/web-app/src/components/SmartComponent/hooks/useChatContext.tsx#L203 https://github.com/iflytek/astron-rpa/issues/892 https://www.vulncheck.com/advisories/astronrpa-through-1.1.6-rce-via-smart-component-chat-xss-and-ipc-bridge

Frequently Asked Questions

What is CVE-2026-108159? +

AstronRPA through 1.1.6 contains a cross-site scripting vulnerability in the desktop client's smart-component chat that allows remote attackers to execute OS commands by abusing unsanitized LLM output rendered via v-html. Attackers can embed prompt-injection content in a web page so the model emits HTML event handlers invoking the unrestricted open-path IPC handler with shell metacharacters, executing commands as the desktop user. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2026-108159? +

CVE-2026-108159 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0033, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-108159? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2026-108159