CVE-2021-28588
Adobe RoboHelp Server version 2019.0.9 (and earlier) is affected by a Path Traversal vulnerability when parsing a crafted HTTP POST request.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (6.21%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Adobe RoboHelp Server version 2019.0.9 (and earlier) is affected by a Path Traversal vulnerability when parsing a crafted HTTP POST request. An authenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue does not require user interaction.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 6.21% probability · 93th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Affected
- adobe/robohelp server
- Source
- psirt@adobe.com
EPSS 6.2% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://www.zerodayinitiative.com/advisories/ZDI-21-660/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-21-660/Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.